We use both of these programs with Vista and XP. We highly recommend them.
You can try them at No Cost
Repair XP Pro 100% XP & Vista Compatible
(Great program) The most comprehensive system repair tools on the market.
 

Drivers for XP?
Are you looking for hardware device drivers for XP? If you can't find what you need on the hardware vendor's Web site, check here for one of the largest sources of XP drivers:
http://www.winxpnews.com/rd/rd.cfm?id=041214TI-Drivers

* The hottest Registry cleaning software on the Net today!

* Repair XP Pro - (Great program) The most comprehensive system repair tool on the market.

* 100's of Very Good Assorted Free computer programs.