I have my SATA drivers on a floppy, I copied those files from the mobo CD. Then I used F6 and selected the XP driver. That process worked for me, make sure that you are copying over the correct files.
For anyone that is considering SATA ..I had a real headache trying to get mine installed over a year ago when most people had not used it yet. Honestly, looking back on it, the extra effort and money did not offer any noticable performance. Wait for the 2nd gen SATA if HDDs are ever fast enough to support it. The best feature of SATA is the small cable connection to help cooling issues.