1. Change to "Standard IDE Controller".
2. Reboot required.
3. Shut down & attach SATA drive.
4. Boot from WinXP install CD. Partition & format the new SATA drive.
5. Boot from a floppy or CD; image the IDE drive to the new SATA drive. A single (non-raided) SATA drive is usually recognised without needing any special SATA driver.
6. After copying is done, reboot, and select (in bios setup) the new boot sequence (SATA drive first).
7. The SATA should now boot. If there's any problems, boot from the WinXP install CD, and do a reinstall on top of the existing data.