"Windows XP Setup Boot Disks" - he won't have 'em and he won't be able to download 'em. [But then how is he posting?]
Have you got a Windows 98 emergency boot disk (or know someone who has one/can make you one [anyone with a running Win98 installation] ? Stuff it in, reboot and you'll be able to see the CDROM (opical drive) & run the XP install CD.
Actually, if the BIOS is relatively modern you should be able to tell the BIOS to boot from the CDROM and off you go straight away. If the BIOS is a bit more modern you can tell it to boot from E:, F:, or G: or H: (mine doesn't go any higher than that I don't think) and it'll boot from any bootable partition that has been made active.
Still slightly confused.............
Happy Xmas to all !!!
Mac