X.  COLLATERAL DETAILS
NOTE: PRELIMINARY INFORMATION CONTAINED HEREIN REFLECTS THE August 1, 2004 CUT-OFF DATE SCHEDULED BALANCES.
COLLATERAL INFORMATION CONTAINED HEREIN IS PRELIMINARY AND INDICATIVE. ON THE CLOSING DATE, THE AGGREGATE
PRINCIPAL BALANCE OF THE  MORTGAGE LOANS IN LOAN GROUPS 1, 2, 3, 4, 5, 6, 7  WILL EQUAL THE AGGREGATE PRINCIPAL BALANCE
OF THE GROUPS 1, 2, 3, 4, 5, 6, 7 AND C-B CERTIFICATES.
	Summary Statistics

	Group 1	Group 2	Group 3	Group 4	Group 5	Group 6	Group 7	Group 1-7
Count	288	378	250	192	477	976	134	2,695
Scheduled Balance ($)	106,154,651.34	205,511,977.30	62,941,211.33	50,680,120.15	95,169,887.97	197,339,398.47	75,269,748.52	793,066,995.08
Avg. Scheduled Balance ($)	368,592.54	543,682.48	251,764.85	263,958.96	199,517.58	202,192.01	561,714.54	294,273.47
Min Scheduled Balance ($)	77,200.00	334,193.29	94,500.00	27,258.70	48,691.43	39,894.46	336,000.00	27,258.70
Max Scheduled Balance ($)	1,000,000.00	2,000,000.00	1,240,000.00	892,875.22	445,972.31	538,300.51	2,000,000.00	2,000,000.00
Wgt. Avg. Gross Rate (%)	5.157	5.083	3.545	5.195	4.692	5.201	4.537	4.909
Wgt. Avg. Net Rate (%)	4.842	4.677	3.170	4.806	4.312	4.806	4.116	4.523
Wgt. Avg. Gross Margin (%)	2.319	2.307	1.956	2.412	2.347	2.424	2.250	2.316
Wgt. Avg. Net Margin (%)	2.004	1.900	1.581	2.023	1.967	2.029	1.829	1.930
Wgt. Avg. Remaining Term (Months)	359	358	359	357	358	358	358	358
Wgt. Avg. Original Term (Months)	360	360	360	360	360	360	360	360
Wgt. Avg. Months to Roll	34	58	5	81	31	58	58	49
Wgt. Avg. Seasoning (Months)	1	2	1	3	2	2	2	2
Wgt. Avg. Original LTV (%)	76.61	72.36	69.52	69.78	74.44	73.92	69.88	72.94
Wgt. Avg. FICO	713	727	732	735	711	721	737	724
Wgt. Avg. Initial Cap (%)	3.873	5.044	8.455	5.041	2.956	4.900	5.005	4.868
Wgt. Avg. Annualized Periodic Cap (%)	2.022	2.078	8.455	2.000	2.003	2.126	2.009	2.568
Wgt. Avg. Periodic Cap (%)	1.235	1.784	8.455	1.541	1.157	1.526	2.000	2.106
Wgt. Avg. Maximum Rate (%)	10.926	10.127	12.000	10.256	9.925	10.287	9.541	10.351

	Rate Index
Index	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
Treasury – 1 Year	2.47	1.05	0.00	16.73	0.32	6.38	0.00	3.30
Libor – 6 Month	77.63	25.46	100.00	45.85	84.44	53.67	0.45	51.39
Libor – 1 Year	19.90	73.49	0.00	37.42	15.23	39.94	99.55	45.31
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Months to Next Rate Adjustment Date
Month	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
2	0.00	0.00	1.86	0.00	0.00	0.00	0.00	0.15
3	0.00	0.00	1.59	0.00	0.00	0.00	0.00	0.13
4	0.00	0.00	37.86	0.00	0.00	0.00	0.00	3.00
5	0.00	0.00	48.64	0.00	0.00	0.00	0.00	3.86
6	0.00	0.00	10.06	0.00	0.00	0.00	0.00	0.80
19	0.00	0.00	0.00	0.00	0.38	0.00	0.00	0.05
20	0.38	0.00	0.00	0.00	4.16	0.00	0.00	0.55
21	1.44	0.00	0.00	0.00	6.26	0.00	0.00	0.94
22	3.95	0.00	0.00	0.00	9.06	0.00	0.00	1.62
23	0.57	0.00	0.00	0.00	3.60	0.00	0.00	0.51
24	0.00	0.00	0.00	0.00	0.21	0.00	0.00	0.02
29	0.90	0.00	0.00	0.00	0.00	0.00	0.00	0.12
31	0.80	0.00	0.00	0.00	0.82	0.00	0.00	0.20
32	0.00	0.00	0.00	0.00	3.04	0.00	0.00	0.36
33	3.64	0.00	0.00	0.00	9.90	0.00	0.00	1.68
34	31.21	0.00	0.00	0.00	45.91	0.00	0.00	9.69
35	50.58	0.00	0.00	0.00	15.33	0.00	0.00	8.61
36	6.52	0.00	0.00	0.00	1.33	0.00	0.00	1.03
49	0.00	0.00	0.00	0.00	0.00	0.08	0.00	0.02
50	0.00	0.00	0.00	0.00	0.00	0.07	0.00	0.02
51	0.00	0.00	0.00	0.00	0.00	0.19	0.00	0.05
52	0.00	0.00	0.00	0.00	0.00	0.12	0.00	0.03
53	0.00	0.00	0.00	0.00	0.00	0.16	0.00	0.04
54	0.00	0.00	0.00	0.00	0.00	0.18	0.00	0.04
55	0.00	0.00	0.00	0.00	0.00	0.42	0.00	0.11
56	0.00	1.17	0.00	0.00	0.00	3.83	0.00	1.25
57	0.00	3.87	0.00	0.00	0.00	14.71	0.00	4.66
58	0.00	82.77	0.00	0.00	0.00	59.55	100.00	45.76
59	0.00	10.96	0.00	0.00	0.00	17.83	0.00	7.28
60	0.00	1.24	0.00	0.00	0.00	2.84	0.00	1.03
72	0.00	0.00	0.00	1.10	0.00	0.00	0.00	0.07
75	0.00	0.00	0.00	0.30	0.00	0.00	0.00	0.02
76	0.00	0.00	0.00	0.40	0.00	0.00	0.00	0.03
77	0.00	0.00	0.00	0.52	0.00	0.00	0.00	0.03
78	0.00	0.00	0.00	0.90	0.00	0.00	0.00	0.06
79	0.00	0.00	0.00	3.38	0.00	0.00	0.00	0.22
80	0.00	0.00	0.00	9.36	0.00	0.00	0.00	0.60
81	0.00	0.00	0.00	17.91	0.00	0.00	0.00	1.14
82	0.00	0.00	0.00	52.89	0.00	0.00	0.00	3.38
83	0.00	0.00	0.00	12.02	0.00	0.00	0.00	0.77
84	0.00	0.00	0.00	1.22	0.00	0.00	0.00	0.08
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Current Mortgage Rates
(%)	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
2.001 – 2.250	0.00	0.00	0.53	0.00	0.00	0.00	0.00	0.04
2.251 – 2.500	0.00	0.00	1.28	0.00	0.26	0.00	0.00	0.13
2.501 – 2.750	0.00	0.00	1.92	0.00	0.00	0.00	0.00	0.15
2.751 – 3.000	0.34	0.00	12.26	0.00	2.36	0.00	0.00	1.30
3.001 – 3.250	0.00	0.00	13.01	0.22	2.56	0.00	0.00	1.35
3.251 – 3.500	0.52	0.00	14.09	0.00	1.46	0.22	0.00	1.42
3.501 – 3.750	0.94	0.18	21.65	0.00	1.12	0.50	0.00	2.15
3.751 – 4.000	1.80	0.00	31.69	1.50	4.04	0.80	1.55	3.68
4.001 – 4.250	4.25	0.91	3.57	1.75	5.90	2.46	2.97	2.80
4.251 – 4.500	10.03	0.98	0.00	5.25	10.76	5.73	50.50	9.44
4.501 – 4.750	9.17	17.12	0.00	19.79	19.06	12.80	44.99	16.67
4.751 – 5.000	12.49	43.92	0.00	23.03	26.68	20.31	0.00	22.78
5.001 – 5.250	13.31	13.90	0.00	12.69	25.82	14.56	0.00	12.91
5.251 – 5.500	16.26	9.33	0.00	12.48	0.00	13.52	0.00	8.76
5.501 – 5.750	23.00	6.93	0.00	11.84	0.00	15.16	0.00	9.40
5.751 – 6.000	7.89	6.72	0.00	2.49	0.00	13.94	0.00	6.43
6.001 – 6.250	0.00	0.00	0.00	3.44	0.00	0.00	0.00	0.22
6.251 – 6.500	0.00	0.00	0.00	0.91	0.00	0.00	0.00	0.06
6.501 – 6.750	0.00	0.00	0.00	2.79	0.00	0.00	0.00	0.18
6.751 – 7.000	0.00	0.00	0.00	1.13	0.00	0.00	0.00	0.07
7.001 – 7.250	0.00	0.00	0.00	0.30	0.00	0.00	0.00	0.02
7.251 – 7.500	0.00	0.00	0.00	0.39	0.00	0.00	0.00	0.03
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Scheduled Balances
$	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
0.01 - 50,000.00	0.00	0.00	0.00	0.20	0.05	0.04	0.00	0.03
50,000.01 - 100,000.00	0.42	0.00	0.94	0.78	2.18	2.95	0.00	1.17
100,000.01 - 150,000.00	2.40	0.00	13.02	9.13	14.00	13.14	0.00	6.89
150,000.01 - 200,000.00	4.21	0.00	16.04	12.67	26.46	22.22	0.00	11.35
200,000.01 - 250,000.00	4.74	0.00	15.14	11.05	17.79	21.46	0.00	10.02
250,000.01 - 300,000.00	7.97	0.00	8.79	10.86	24.09	19.96	0.00	10.32
300,000.01 - 350,000.00	7.52	3.66	9.03	14.04	13.73	18.49	1.35	9.95
350,000.01 - 400,000.00	18.32	15.04	6.02	8.83	0.78	0.76	9.37	8.56
400,000.01 - 450,000.00	14.45	12.04	4.82	9.08	0.92	0.20	15.77	7.67
450,000.01 - 500,000.00	12.44	13.56	3.72	5.59	0.00	0.24	10.09	6.85
500,000.01 - 550,000.00	4.49	7.67	1.73	0.00	0.00	0.54	9.67	3.78
550,000.01 - 600,000.00	7.09	7.89	0.00	6.88	0.00	0.00	10.78	4.46
600,000.01 - 650,000.00	5.35	9.56	8.08	6.25	0.00	0.00	10.95	5.28
650,000.01 - 700,000.00	0.64	5.34	2.16	1.38	0.00	0.00	2.76	1.99
700,000.01 - 750,000.00	1.36	2.82	1.18	0.00	0.00	0.00	4.83	1.47
750,000.01 - 800,000.00	1.48	1.52	2.53	1.50	0.00	0.00	7.32	1.58
800,000.01 - 850,000.00	0.76	1.61	1.31	0.00	0.00	0.00	2.19	0.83
850,000.01 - 900,000.00	0.85	2.99	0.00	1.76	0.00	0.00	2.38	1.23
900,000.01 - 950,000.00	0.87	1.80	0.00	0.00	0.00	0.00	2.47	0.82
950,000.01 - 1,000,000.00	4.64	5.69	1.59	0.00	0.00	0.00	2.59	2.47
1,050,000.01 - 1,100,000.00	0.00	2.13	0.00	0.00	0.00	0.00	1.44	0.69
1,100,000.01 - 1,150,000.00	0.00	0.54	0.00	0.00	0.00	0.00	0.00	0.14
1,150,000.01 - 1,200,000.00	0.00	2.91	0.00	0.00	0.00	0.00	0.00	0.75
>= 1,200,000.01	0.00	3.23	3.90	0.00	0.00	0.00	6.03	1.72
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Geographic Distribution
State	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
California	59.25	56.28	14.49	38.06	28.13	29.59	65.41	43.04
Colorado	4.79	5.60	3.60	1.53	5.03	7.20	11.17	5.93
Arizona	2.81	8.89	2.69	0.44	2.61	5.94	6.99	5.38
Michigan	1.63	1.18	25.37	1.21	14.88	2.98	0.70	5.21
Nevada	2.02	2.81	2.56	3.20	10.77	6.46	2.26	4.52
Florida	3.13	1.04	8.67	2.06	5.50	4.84	1.24	3.49
New York	4.60	2.58	4.18	4.78	2.53	3.64	1.15	3.24
Illinois	2.26	1.95	1.49	3.73	4.16	4.85	3.84	3.23
New Jersey	1.90	2.64	4.56	4.66	3.28	3.45	0.00	2.85
Massachusetts	1.85	2.30	1.35	7.63	1.24	4.17	0.00	2.62
Other	15.76	14.73	31.03	32.72	21.87	26.87	7.24	20.48
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Gross Margin
(%)	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
0.751 – 1.000	0.00	0.00	0.53	0.00	0.00	0.00	0.00	0.04
1.001 – 1.250	0.00	0.00	15.07	0.00	0.00	0.00	0.00	1.20
1.251 – 1.500	0.00	0.00	6.54	0.00	0.00	0.00	0.00	0.52
1.501 – 1.750	0.00	0.00	5.63	0.00	0.00	0.00	0.00	0.45
1.751 – 2.000	0.00	0.00	29.01	0.00	0.00	0.04	0.00	2.31
2.001 – 2.250	92.95	92.41	30.37	71.11	85.61	68.95	100.00	80.26
2.251 – 2.500	1.63	1.83	4.98	2.30	6.09	5.69	0.00	3.38
2.501 – 2.750	3.45	2.82	7.87	22.67	4.72	14.69	0.00	7.49
2.751 – 3.000	0.00	1.05	0.00	2.23	0.92	4.94	0.00	1.76
3.001 – 3.250	0.00	0.42	0.00	0.72	0.17	3.35	0.00	1.01
3.251 – 3.500	0.34	0.80	0.00	0.00	0.34	1.57	0.00	0.68
3.501 – 3.750	0.00	0.00	0.00	0.30	0.00	0.57	0.00	0.16
3.751 – 4.000	0.00	0.00	0.00	0.00	0.34	0.00	0.00	0.04
4.251 – 4.500	0.00	0.00	0.00	0.00	0.00	0.07	0.00	0.02
4.501 – 4.750	0.00	0.00	0.00	0.39	0.34	0.00	0.00	0.07
4.751 – 5.000	1.62	0.67	0.00	0.29	1.48	0.13	0.00	0.62
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Maximum Rate
(%)	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
7.251 - 7.500	0.00	0.00	0.00	0.00	0.26	0.00	0.00	0.03
7.751 - 8.000	0.34	0.00	0.00	0.00	2.36	0.00	0.00	0.33
8.001 - 8.250	0.00	0.00	0.00	0.22	2.56	0.00	0.00	0.32
8.251 - 8.500	0.52	0.00	0.00	0.00	1.83	0.15	0.00	0.33
8.501 - 8.750	0.00	0.18	0.00	0.00	0.88	0.50	0.00	0.28
8.751 - 9.000	0.32	0.00	0.00	1.50	2.68	0.80	1.55	0.81
9.001 - 9.250	2.00	0.91	0.00	1.75	4.14	2.46	2.97	2.01
9.251 - 9.500	3.39	0.53	0.00	4.35	8.14	5.57	50.50	8.02
9.501 - 9.750	5.07	16.63	0.00	18.30	14.38	12.13	44.53	15.13
9.751 - 10.000	7.80	43.61	0.00	22.19	21.28	19.17	0.00	21.08
10.001 - 10.250	8.26	13.15	0.00	12.69	22.36	13.38	0.00	11.34
10.251 - 10.500	6.64	8.89	0.00	13.38	3.01	11.38	0.00	7.24
10.501 - 10.750	5.04	7.17	0.00	10.87	4.46	13.57	0.45	7.18
10.751 - 11.000	6.18	5.77	0.00	3.33	5.48	14.32	0.00	6.76
11.001 - 11.250	7.30	0.75	0.00	3.03	5.68	1.25	0.00	2.36
11.251 - 11.500	16.26	0.90	0.00	0.91	0.00	2.34	0.00	3.05
11.501 - 11.750	23.00	0.24	0.00	5.25	0.00	2.16	0.00	4.01
11.751 - 12.000	7.89	1.27	100.00	1.13	0.27	0.80	0.00	9.63
12.001 - 12.250	0.00	0.00	0.00	0.71	0.00	0.00	0.00	0.05
12.251 - 12.500	0.00	0.00	0.00	0.39	0.00	0.00	0.00	0.03
15.001 - 15.250	0.00	0.00	0.00	0.00	0.24	0.00	0.00	0.03
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Credit Score
FICO Score	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
601 – 625	0.00	0.47	0.00	0.25	0.96	0.91	0.00	0.48
626 – 650	2.03	2.07	0.00	4.89	6.02	5.35	0.47	3.22
651 – 675	12.17	7.23	5.87	6.71	15.58	11.40	5.20	9.60
676 – 700	27.62	19.19	15.98	6.73	21.70	17.58	16.10	18.88
701 – 725	24.62	20.33	15.90	21.32	19.69	17.47	12.06	19.04
726 – 750	15.21	19.43	32.03	17.79	16.35	16.76	24.30	19.19
751 – 775	10.65	14.72	16.48	24.99	10.26	18.94	25.09	16.47
776 – 800	7.45	14.02	11.35	15.89	8.28	10.17	16.04	11.59
801 – 825	0.25	2.55	2.39	1.43	1.04	1.43	0.74	1.53
>= 826	0.00	0.00	0.00	0.00	0.11	0.00	0.00	0.01
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Property Type
Type	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
Single Family Residence	56.81	67.22	73.50	66.05	62.47	61.43	66.44	64.17
Condo	14.56	10.05	8.84	7.84	13.18	14.56	8.01	11.72
2-4 Family	1.30	1.60	0.39	4.36	3.81	5.18	0.00	2.64
Co-op	0.00	0.96	0.71	0.95	0.84	0.26	1.15	0.64
PUD	27.33	20.17	16.56	20.80	19.70	18.57	24.39	20.83
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Occupancy Status
Status	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
Primary	97.56	94.23	91.87	90.05	85.97	86.63	96.68	91.57
Second Home	1.24	4.19	7.06	3.55	4.06	3.66	3.32	3.75
Investment	1.20	1.58	1.07	6.41	9.97	9.71	0.00	4.68
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Loan Purpose
Purpose	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
Purchase	59.77	49.44	28.53	41.42	50.17	48.78	18.84	45.67
Refinance – Rate Term	20.43	17.72	55.51	39.03	26.82	23.95	33.58	26.59
Refinance – Cashout	19.80	32.83	15.97	19.54	23.01	27.26	47.58	27.73
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Original Loan to Value Ratio
Original LTV	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
<= 50.00	1.42	4.34	8.79	11.37	5.63	6.28	7.67	5.71
50.01 - 55.00	1.37	3.95	5.89	4.34	2.14	2.78	5.81	3.45
55.01 - 60.00	3.67	6.85	9.87	6.99	4.14	4.71	2.90	5.44
60.01 - 65.00	3.41	5.80	4.37	11.22	4.20	5.23	9.37	5.72
65.01 - 70.00	5.07	12.02	18.57	10.91	10.82	7.70	10.88	10.21
70.01 - 75.00	6.70	12.82	13.05	10.22	10.37	8.18	20.43	11.13
75.01 - 80.00	76.71	52.75	33.21	38.75	55.82	57.16	42.49	54.00
80.01 - 85.00	0.43	0.61	0.74	2.37	1.02	1.23	0.45	0.90
85.01 - 90.00	0.00	0.40	2.35	2.38	2.01	3.49	0.00	1.55
90.01 - 95.00	1.22	0.45	3.16	1.45	3.85	2.88	0.00	1.80
95.01 - 100.00	0.00	0.00	0.00	0.00	0.00	0.36	0.00	0.09
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Documentation Type
Documentation	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
Full/Alternative	21.72	44.33	76.42	62.64	47.09	49.41	54.44	47.57
Reduced	61.73	33.86	23.58	32.86	37.07	34.82	25.97	36.59
Stated/Stated	5.79	20.09	0.00	1.78	7.68	8.17	19.59	10.91
No Income/ No Asset	10.77	1.72	0.00	2.73	8.17	7.60	0.00	4.93
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Original Term
Months	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
360	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Remaining Term
Months	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
321 – 360	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Seasoning
Months	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
0	6.52	1.24	10.06	1.22	1.33	2.84	0.00	2.94
1 - 5	92.58	98.76	89.94	95.56	98.46	96.34	100.00	96.51
6 - 10	0.90	0.00	0.00	2.12	0.00	0.73	0.00	0.44
11 - 15	0.00	0.00	0.00	1.10	0.21	0.08	0.00	0.12
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Initial Rate Cap
(%)	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
1.000	0.00	0.00	0.00	0.00	0.37	0.00	0.00	0.04
2.000	22.37	0.00	0.00	0.66	16.21	5.94	0.00	6.46
3.000	23.37	0.00	0.00	0.00	77.65	0.14	0.00	12.48
4.000	0.00	0.00	0.00	0.00	0.00	0.05	0.00	0.01
5.000	53.15	95.59	0.00	93.24	4.75	85.68	99.55	69.18
6.000	1.12	4.41	0.00	6.10	1.03	8.19	0.45	3.89
7.750	0.00	0.00	1.45	0.00	0.00	0.00	0.00	0.11
7.875	0.00	0.00	2.12	0.00	0.00	0.00	0.00	0.17
8.000	0.00	0.00	12.43	0.00	0.00	0.00	0.00	0.99
8.125	0.00	0.00	19.26	0.00	0.00	0.00	0.00	1.53
8.250	0.00	0.00	8.50	0.00	0.00	0.00	0.00	0.67
8.375	0.00	0.00	13.15	0.00	0.00	0.00	0.00	1.04
8.500	0.00	0.00	10.70	0.00	0.00	0.00	0.00	0.85
8.625	0.00	0.00	3.39	0.00	0.00	0.00	0.00	0.27
8.750	0.00	0.00	4.27	0.00	0.00	0.00	0.00	0.34
8.875	0.00	0.00	8.74	0.00	0.00	0.00	0.00	0.69
9.000	0.00	0.00	7.10	0.00	0.00	0.00	0.00	0.56
9.125	0.00	0.00	5.16	0.00	0.00	0.00	0.00	0.41
9.250	0.00	0.00	1.63	0.00	0.00	0.00	0.00	0.13
9.375	0.00	0.00	0.29	0.00	0.00	0.00	0.00	0.02
9.500	0.00	0.00	0.31	0.00	0.00	0.00	0.00	0.02
9.625	0.00	0.00	0.97	0.00	0.00	0.00	0.00	0.08
9.750	0.00	0.00	0.53	0.00	0.00	0.00	0.00	0.04
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Interest Only Period
Month	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
0	12.02	20.58	4.76	63.77	40.24	47.69	22.17	30.19
24	3.97	0.00	0.00	0.00	6.08	0.00	0.00	1.26
36	82.84	0.00	0.00	0.00	49.84	0.00	0.00	17.07
60	0.34	75.83	0.00	0.00	0.34	46.19	77.83	38.62
84	0.00	0.00	0.00	33.77	0.00	0.00	0.00	2.16
120	0.83	3.59	95.24	2.46	3.51	6.12	0.00	10.70
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

	Prepayment Penalty Period
Month	Group 1 (%)	Group 2 (%)	Group 3 (%)	Group 4 (%)	Group 5 (%)	Group 6 (%)	Group 7 (%)	Group 1-7 (%)
0	82.30	91.12	88.48	89.93	69.93	79.54	100.00	85.07
3	0.00	0.00	1.75	0.00	0.16	0.00	0.00	0.16
6	0.00	0.00	1.22	0.00	0.34	0.22	0.00	0.19
12	0.34	0.88	3.52	0.00	1.02	1.79	0.00	1.12
24	5.05	3.60	0.00	2.96	21.08	5.73	0.00	5.75
36	10.93	3.21	5.03	3.45	6.87	7.57	0.00	5.62
60	1.38	1.20	0.00	3.66	0.59	5.16	0.00	2.08
Total:	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00

X.  COLLATERAL DETAILS
NOTE: PRELIMINARY INFORMATION CONTAINED HEREIN REFLECTS THE August 1, 2004 CUT-OFF DATE SCHEDULED BALANCES.
COLLATERAL INFORMATION CONTAINED HEREIN IS PRELIMINARY AND INDICATIVE. ON THE CLOSING DATE, THE AGGREGATE
PRINCIPAL BALANCE OF THE  MORTGAGE LOANS IN LOAN GROUPS 8A, 8B AND 8C WILL EQUAL THE AGGREGATE PRINCIPAL BALANCE
OF THE GROUPS 8A, 8B, 8C AND C-B CERTIFICATES.
	Summary Statistics
	Group 8A	Group 8B	Group 8C	Group 8A-8C
Count	1407	791	206	2404
Scheduled Balance ($)	262,317,868.16	260,335,415.06	55,160,315.85	577,813,599.06
Avg. Scheduled Balance ($)	186,437.72	329,121.89	267,768.52	240,355.07
Min Scheduled Balance ($)	31,952.35	39,551.85	24,711.11	24,711.11
Max Scheduled Balance ($)	612,000.00	2,495,467.69	999,999.99	2,495,467.69
Wgt. Avg. Gross Rate (%)	6.327	6.341	4.632	6.172
Wgt. Avg. Net Rate (%)	6.060	6.069	4.285	5.895
Wgt. Avg. Gross Margin (%)	3.147	3.184	2.071	3.061
Wgt. Avg. Net Margin (%)	2.880	2.912	1.723	2.784
Wgt. Avg. Remaining Term (Months)	358	358	358	358
Wgt. Avg. Original Term (Months)	360	360	360	360
Wgt. Avg. Months to Roll	34	34	5	31
Wgt. Avg. Seasoning (Months)	2	2	2	2
Wgt. Avg. Original LTV (%)	79.89	78.59	77.06	79.04
Wgt. Avg. FICO**	700	701	718	702
Wgt. Avg. Initial Cap (%)	3.586	3.555	1.100	3.335
Wgt. Avg. Annualized Periodic Cap (%)	2.014	2.027	2.000	2.019
Wgt. Avg. Periodic Cap (%)	1.037	1.082	1.088	1.063
Wgt. Avg. Maximum Rate (%)	11.455	11.518	10.758	11.417
	Rate Index
Index	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
Treasury - 1 Year	0.29	0.29	0.00	0.26
Libor - 6 Month	96.99	93.13	91.16	94.69
Libor - 1 Year	2.72	6.58	8.84	5.04
Total:	100.00	100.00	100.00	100.00
	Months to Next Rate Adjustment Date
Month	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 6A-6B (%)
2	0.00	0.00	0.50	0.05
3	0.10	0.00	2.91	0.32
4	0.00	0.00	26.35	2.52
5	0.00	0.00	60.87	5.81
6	0.00	0.00	0.54	0.05
8	0.15	0.05	0.00	0.09
9	0.45	0.32	2.00	0.54
10	1.57	3.95	6.43	3.11
11	0.30	1.54	0.41	0.87
15	0.06	0.10	0.00	0.07
17	0.04	0.15	0.00	0.08
18	0.00	0.06	0.00	0.03
19	0.57	0.54	0.00	0.50
20	2.34	1.71	0.00	1.84
21	7.48	5.85	0.00	6.03
22	19.02	19.29	0.00	17.33
23	10.04	9.35	0.00	8.77
29	0.11	0.09	0.00	0.09
30	0.17	0.09	0.00	0.12
31	0.19	0.07	0.00	0.12
32	0.39	0.80	0.00	0.54
33	4.72	2.54	0.00	3.29
34	13.44	12.95	0.00	11.94
35	13.78	15.39	0.00	13.19
36	1.90	1.68	0.00	1.62
54	0.00	0.12	0.00	0.05
55	0.19	0.00	0.00	0.09
56	0.15	0.07	0.00	0.10
57	2.15	1.01	0.00	1.44
58	9.45	10.44	0.00	8.99
59	10.19	11.00	0.00	9.58
60	1.06	0.83	0.00	0.85
Total:	100.00	100.00	100.00	100.00
	Current Mortgage Rates
(%)	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
2.501 - 2.750	0.08	0.05	0.04	0.06
2.751 - 3.000	0.08	0.00	0.00	0.04
3.001 - 3.250	0.10	0.00	3.19	0.35
3.251 - 3.500	0.03	0.00	3.07	0.31
3.501 - 3.750	0.00	0.12	14.87	1.48
3.751 - 4.000	0.14	0.06	4.69	0.54
4.001 - 4.250	0.14	0.12	5.13	0.61
4.251 - 4.500	0.37	1.41	15.23	2.26
4.501 - 4.750	0.54	0.79	9.71	1.53
4.751 - 5.000	0.73	1.16	13.78	2.17
5.001 - 5.250	0.42	2.09	9.52	2.04
5.251 - 5.500	9.27	8.26	10.94	8.97
5.501 - 5.750	10.13	9.40	4.32	9.25
5.751 - 6.000	13.81	11.82	4.74	12.04
6.001 - 6.250	13.29	12.64	0.76	11.80
6.251 - 6.500	18.81	16.80	0.00	16.11
6.501 - 6.750	12.01	12.02	0.00	10.87
6.751 - 7.000	8.30	8.38	0.00	7.55
7.001 - 7.250	3.88	3.25	0.00	3.22
7.251 - 7.500	3.39	3.74	0.00	3.22
7.501 - 7.750	1.68	3.94	0.00	2.54
7.751 - 8.000	1.33	3.17	0.00	2.03
8.001 - 8.250	0.64	0.22	0.00	0.39
8.251 - 8.500	0.23	0.40	0.00	0.28
8.501 - 8.750	0.61	0.14	0.00	0.34
Total:	100.00	100.00	100.00	100.00
	Scheduled Balances
$	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
0.01 - 50,000.00	0.27	0.07	0.04	0.16
50,000.01 - 100,000.00	5.58	1.48	1.57	3.35
100,000.01 - 150,000.00	15.56	5.24	7.93	10.18
150,000.01 - 200,000.00	21.07	6.17	12.70	13.56
200,000.01 - 250,000.00	21.82	6.59	12.37	14.05
250,000.01 - 300,000.00	19.61	7.18	11.17	13.20
300,000.01 - 350,000.00	13.13	7.78	12.46	10.66
350,000.01 - 400,000.00	1.55	14.20	11.51	8.20
400,000.01 - 450,000.00	0.81	10.34	5.58	5.56
450,000.01 - 500,000.00	0.37	9.30	3.43	4.68
500,000.01 - 550,000.00	0.00	5.67	7.58	3.28
550,000.01 - 600,000.00	0.00	5.75	3.10	2.89
600,000.01 - 650,000.00	0.23	6.32	4.55	3.39
650,000.01 - 700,000.00	0.00	1.58	0.00	0.71
700,000.01 - 750,000.00	0.00	1.67	2.59	1.00
750,000.01 - 800,000.00	0.00	2.10	0.00	0.94
800,000.01 - 850,000.00	0.00	0.64	0.00	0.29
850,000.01 - 900,000.00	0.00	1.34	1.60	0.75
900,000.01 - 950,000.00	0.00	1.08	0.00	0.48
950,000.01 - 1,000,000.00	0.00	4.15	1.81	2.04
1,000,000.01 - 1,050,000.00	0.00	0.40	0.00	0.18
>= 1,200,000.01	0.00	0.96	0.00	0.43
Total:	100.00	100.00	100.00	100.00
	Geographic Distribution
State	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
California	27.44	43.91	39.26	35.99
Nevada	19.80	13.73	2.20	15.39
New York	4.82	7.58	1.56	5.75
New Jersey	5.33	5.41	1.06	4.96
Florida	4.37	5.17	4.32	4.73
Arizona	6.71	2.46	5.58	4.69
Colorado	3.36	2.26	6.38	3.15
Virginia	3.66	1.59	5.21	2.87
Massachusetts	2.50	3.04	2.92	2.79
Washington	2.37	1.75	4.55	2.30
Other	19.64	13.09	26.95	17.39
Total:	100.00	100.00	100.00	100.00
	Gross Margin
(%)	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
1.251 - 1.500	0.00	0.00	0.04	0.00
1.501 - 1.750	0.00	0.00	1.11	0.11
1.751 - 2.000	0.00	0.00	70.82	6.76
2.001 - 2.250	21.52	22.03	18.96	21.51
2.251 - 2.500	9.04	11.25	8.84	10.02
2.501 - 2.750	8.17	6.96	0.22	6.87
2.751 - 3.000	10.81	9.36	0.00	9.12
3.001 - 3.250	13.77	10.21	0.00	10.85
3.251 - 3.500	10.66	10.53	0.00	9.58
3.501 - 3.750	8.12	8.83	0.00	7.67
3.751 - 4.000	4.84	3.91	0.00	3.96
4.001 - 4.250	3.89	3.57	0.00	3.37
4.251 - 4.500	1.92	4.68	0.00	2.98
4.501 - 4.750	1.07	3.11	0.00	1.89
4.751 - 5.000	6.06	5.33	0.00	5.15
5.001 - 5.250	0.12	0.06	0.00	0.08
5.251 - 5.500	0.00	0.06	0.00	0.03
5.751 - 6.000	0.00	0.10	0.00	0.04
Total:	100.00	100.00	100.00	100.00
	Maximum Rate
(%)	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
8.501 - 8.750	0.08	0.05	0.00	0.06
8.751 - 9.000	0.08	0.00	0.00	0.04
9.001 - 9.250	0.10	0.00	0.00	0.04
9.251 - 9.500	0.03	0.00	2.56	0.26
9.501 - 9.750	0.05	0.12	13.00	1.32
9.751 - 10.000	0.14	0.06	2.43	0.32
10.001 - 10.250	0.18	0.12	0.90	0.22
10.251 - 10.500	9.19	8.46	1.76	8.15
10.501 - 10.750	10.14	8.94	2.20	8.84
10.751 - 11.000	12.17	11.06	74.71	17.64
11.001 - 11.250	11.42	11.30	2.22	10.49
11.251 - 11.500	17.65	16.45	0.00	15.43
11.501 - 11.750	10.66	11.94	0.00	10.22
11.751 - 12.000	10.01	9.89	0.00	9.00
12.001 - 12.250	5.97	6.58	0.00	5.67
12.251 - 12.500	4.94	5.30	0.00	4.63
12.501 - 12.750	3.55	4.84	0.00	3.79
12.751 - 13.000	1.85	3.71	0.00	2.51
13.001 - 13.250	0.64	0.24	0.00	0.40
13.251 - 13.500	0.29	0.25	0.00	0.24
13.501 - 13.750	0.61	0.45	0.00	0.48
13.751 - 14.000	0.07	0.00	0.00	0.03
14.001 - 14.250	0.10	0.09	0.00	0.08
14.251 - 14.500	0.00	0.15	0.00	0.07
15.251 - 15.500	0.00	0.00	0.22	0.02
16.001 - 16.250	0.04	0.00	0.00	0.02
16.501 - 16.750	0.05	0.00	0.00	0.02
Total:	100.00	100.00	100.00	100.00
	Credit Score
FICO Score	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
Unavailable	0.18	0.65	0.00	0.38
576 - 600	0.07	0.30	0.00	0.17
601 - 625	2.15	1.43	0.00	1.62
626 - 650	10.52	8.59	3.48	8.98
651 - 675	16.74	20.26	11.16	17.79
676 - 700	23.76	20.74	20.53	22.09
701 - 725	19.70	20.73	23.17	20.49
726 - 750	12.24	13.07	20.12	13.37
751 - 775	10.43	8.51	12.72	9.78
776 - 800	3.83	4.26	7.65	4.39
801 - 825	0.38	1.46	1.17	0.94
Total:	100.00	100.00	100.00	100.00
	Property Type
Type	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
Single Family Residence	52.20	53.14	62.66	53.62
Condo	10.40	8.24	7.11	9.11
2-4 Family	11.29	12.54	2.02	10.97
Co-op	0.17	0.12	0.12	0.14
PUD	25.94	25.96	28.09	26.16
Total:	100.00	100.00	100.00	100.00
	Occupancy Status
Status	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
Primary	73.79	73.84	99.29	76.24
Second Home	2.55	3.00	0.49	2.55
Investment	23.66	23.17	0.23	21.20
Total:	100.00	100.00	100.00	100.00
	Loan Purpose
Purpose	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
Purchase	76.45	77.64	56.35	75.06
Refinance - Rate Term	8.73	6.74	24.10	9.30
Refinance - Cashout	14.82	15.63	19.55	15.64
Total:	100.00	100.00	100.00	100.00
	Original Loan to Value Ratio
Original LTV	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
<= 50.00	0.68	1.27	2.58	1.13
50.01 - 55.00	0.12	0.34	0.35	0.24
55.01 - 60.00	1.04	0.59	2.01	0.93
60.01 - 65.00	1.14	2.57	2.60	1.92
65.01 - 70.00	3.37	4.48	4.77	4.00
70.01 - 75.00	8.33	11.21	8.17	9.61
75.01 - 80.00	72.66	71.15	75.25	72.23
80.01 - 85.00	1.19	0.46	0.44	0.79
85.01 - 90.00	4.70	4.34	1.81	4.26
90.01 - 95.00	6.66	3.60	2.02	4.84
95.01 - 100.00	0.11	0.00	0.00	0.05
Total:	100.00	100.00	100.00	100.00
	Documentation Type
Documentation	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
Full/Alternative	14.49	14.20	23.39	15.21
Reduced	60.30	63.07	71.15	62.58
Stated/Stated	10.57	12.12	0.00	10.26
No Income/ No Asset	14.65	10.61	5.47	11.95
Total:	100.00	100.00	100.00	100.00
	Original Term
Months	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
180	0.00	0.25	0.00	0.11
360	100.00	99.75	100.00	99.89
Total:	100.00	100.00	100.00	100.00
	Remaining Term
Months	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
121 - 180	0.00	0.25	0.00	0.11
321 - 360	100.00	99.75	100.00	99.89
Total:	100.00	100.00	100.00	100.00
	Seasoning
Months	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
0	2.96	2.51	0.00	2.47
1 - 5	96.58	96.88	95.02	96.57
6 - 10	0.46	0.61	4.98	0.96
Total:	100.00	100.00	100.00	100.00
	Initial Rate Cap
(%)	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
1.000	0.00	0.12	90.94	8.74
2.000	3.08	6.99	8.84	5.39
3.000	66.47	62.28	0.00	58.24
5.000	29.73	29.08	0.00	26.60
6.000	0.72	1.53	0.22	1.04
Total:	100.00	100.00	100.00	100.00
	Interest Only Period
Month	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
0	59.55	59.37	6.15	54.37
24	8.90	7.01	0.00	7.20
36	15.88	15.05	0.00	13.99
60	11.80	14.71	8.14	12.76
120	3.88	3.86	85.71	11.68
Total:	100.00	100.00	100.00	100.00
	Prepayment Penalty Period
Month	Group 8A(%)	Group 8B (%)	Group 8C (%)	Group 8A-8C (%)
0	50.51	54.36	68.83	54.00
3	0.18	1.14	0.00	0.59
6	0.87	0.79	0.00	0.75
12	3.00	3.08	0.00	2.75
24	29.17	26.57	0.00	25.21
36	13.90	10.74	31.17	14.13
60	2.38	3.32	0.00	2.58
Total:	100.00	100.00	100.00	100.00
**Where Available