repair xp & ie with xp restore disk

I have a toshiba laptop, that came with a restore disk, windows xp-sp1. I have downloaded all of the updates from microsoft, so the laptop is now a sp2. I have some corrupted files and do not want to do a restore if I can avoid it. I do have xp-sp2 on disk, if that helps.

Up until this computer, I have always owned full versions of windows, so I did know how to do a system check and repair corrupted missing files.

Does xp work in the same manner? Should I use the xp-sp2 disk to restore/repair files? Or do I have to do a restore?

Thanks