CUSIP NO. 00760B105

EXHIBIT 1

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1)(iii) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned each agree that the Amendment No. 11 to the Statement on Schedule 13D to which this exhibit is attached is filed on behalf of each of them.

Dated: May 9, 2006
	QUESTOR PARTNERS FUND II, L.P. a Delaware limited partnership
	By:	Questor General Partner II, L.P. its General Partner
	By:	Questor Principals II, Inc. its General Partner
	By:	/s/ Robert D. Denious
	Title:	Managing Director
	QUESTOR SIDE-BY-SIDE PARTNERS II, L.P. a Delaware limited partnership
	By:	Questor Principals II, Inc. Its General Partner
	By:	/s/ Robert D. Denious
	Title:	Managing Director
	QUESTOR SIDE-BY-SIDE PARTNERS II 3(C)(1), L.P. a Delaware limited partnership
	By:	Questor Principals II, Inc. Its General Partner
	By:	/s/ Robert D. Denious
	Title:	Managing Director

END OF FILING

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