hi
you probably have a nforce based motherboard or something like that
on some mother board with promise sata controller you can install windows xp without patching, but it seems it doesn't work on yours
to solve the issue, simply add sp1 (and drivers if really needed) to a self made windows xp cd
here's a link explaining the trick
http://www.theeldergeek.com/slipstreamed_xpsp1_cd.htm
don't forget to put your sata drive after your cdrom and before your ide drive in the boot chain
maybe you'll have to select sata controler as the main one two
those options can be found in the bios, simply make as you think and everything will be ok
