You have no SATA drivers in the Win xp installation disk.
You can either slipstream SATA drivers into the Win XP installation disk.
Use google for more information.
OR
Download the SATA drivers from Fujitsu website.
copy the drivers into a Floppy disc. Also get a USB Floppy drive. Make sure the brand of the FDD is Teac. Most other brands don't work.
On installation of Win XP, press F6 for installation of other SCSI drivers etc.
You will not see any response on pressing F6 immediately. Wait a while, windows will detect your floppy and ask you to install the SATA drivers.
After installation of SATA drivers, DO NOT plug out the USB FDD. The drivers will be required for the second time. (If you are using other brands of FDD other than Teac, the OS will NOT be able to recognize the FDD and the drivers cannot be installed).
After that, continue the installation as per normal.