You'll need to get the XP drivers for your SATA controller, and patch the XP disc with them. I can't remember how to do it off the top of my head, but you'll almost certainly need the software nLite.
It'll let you create a new patched XP disc with the drivers on it. It'll also allow you to do a whole host of other patches and tweaks, and the disc can be set-up to do an unattended install aswell. Nice.
