X0101 EFFECT 33 LIVE 2013-08-23 0001193125-13-336709 POS AM 0000912145 AMERISTAR CASINOS INC 333-34381 0001044721 Ameristar Casinos Financing Corp. 333-34381-05 0001044720 AMERISTAR CASINO LAS VEGAS INC 333-34381-04 0001044719 AMERISTAR CASINO COUNCIL BLUFFS INC 333-34381-03 0001044717 AMERISTAR CASINO VICKSBURG INC 333-34381-02 0001044716 CACTUS PETES INC 333-34381-01