Well, I never give up....NEVER!! I finally found the drivers
needed for XP home to work in AHCI. I got them from this zip file http://downloadmirror.intel.com/2077...inst_autol.zip
. I haven't yet tried incorporating them into an XP home installation disc, but they were the ones I used with Paragon visualization manager after imaging my OS from my old computer. Using the P2P option to fit an old OS onto a new system. XP booted up in AHCI and then I installed the rest of the drivers from the MoB Disc. Thanks again to all who tried to help me, you actually did give me a lot of info that got me thinking in the right direction. Also I hope that this can help others working with the z77 chipset.