Thanks to everyone for all their help. It's greatly appreciated.
I have one final question though (I promise

): how should I go about totally cleaning up the hard drive? I'd like to get it back to pretty much how it was from the factory (just barebones Windows XP Home). I don't have the Windows discs though, so I can't do a re-install.
Should I just go around deleting programs, documents, cookies, caches and whatever? Or is there another way to really clean things up? Thanks very much again.