Hello. I cant start my installer of iAtkos, Kalyway etc. I still get this same error- Still waiting for root device

My spec is:
EVGA nForce 650i Ultra
Intel Pentium 4 HT 3.0GHz
GF 7800 GT
2GB DDR2 RAM
1x IDE ATA HDD
1x IDE ATA DVD-RAM
BIOS Award

What should i change in BIOS to start installation? (I don't know how to disable SATA port).
Regards.