Can't get an XP machine to recognize mouse and keyboard.

I was given some neighbor's machine to try and fix. At first it would attempt to boot into XP and get a bluescreen, always, even with safe mode. So I boot up the OS disk and try a few things then come across the command 'fixboot' which did indeed fix the boot sector on the C drive and told me that it had been corrupted beforehand. Now that that's solved everything boots up fine, except for one little thing. XP won't recognize my wired mouse, my wireless mouse or my wired keyboard. At first I thought it was one of those nit-picky things Windows does where it has to be a certain USB port in order to work but I've tried my wired mouse in EVERY USB port on this thing and none of them give me a response of any kind. The mouse doesn't even look like it's getting power. Granted I haven't tried every port with the other two peripherals, but I think this speaks for itself. What makes absolutely no sense about any of this is that the keyboard works just fine when I'm working around in the BIOS and every peripheral works 100% on my normal machine without anything fancy.

I don't know all the specs but I do know this machine is running Windows XP SP2 (at least), it's a Dell XPS 210 model, runs a Core 2 Duo at 1.86 GHz and that's about it.

Any ideas?

Edit - Nevermind, wrong section.