I bought a refurbished Vostro 1500 a few years ago. I would like to reinstall XP and everything else, but it did not come with an installation cd. I can find all the drivers on Dell's website, but nothing else. Is there anyway to reinstall the OS? Can I use my own copy but use a different install key? If so, is there anywhere I can find the key on the laptop now? Thanks for any help.