I also have the 2002 version of XP Pro Upgrade. Could I do a brand new install using that disk?
Just touching on this to fully explain how the XP Upgrade CD's work (since it comes up every now and again)...
A very common misconception is that you can *only* use an XP Upgrade CD if you have Windows currently installed on your system, where in fact, all you need is a valid copy in your posession.
If you have an XP Upgrade disc, it actually has the full version of XP on it, it's just coded to only install that version if you can verify you have a previous, legit version of XP, installed or not. A previous, legit version is defined as one that was obtained legally (ie, not DLed, burned, etc.), regardless of OEM or Retail (FWIW, a Recovery CD is viewed as OEM).
If you do a straight Upgrade (Windows installed, pop in the CD and Upgrade), everything is fairly straight-forward. If you do a New Installation (blank HDD), just boot to the Upgrade CD via BIOS and let it load. Follow the on-screen instructions and eventually you'll be prompted to verify that you do in fact have a previous version of Windows.
Take that however you want to...