@grinning_devil: SATA Hard Disks are PnP, but the SATA Controller needs drivers! Hehe..
@alanpaladka: Try: *support.asus.com/download/download.aspx?SLanguage=en-us
If u dont find drivers specifically for windows vista, you could try installing XP drivers, if Vista accepts them.. Didnt u get a floppy with your motherboard? See if that works..