Originally Posted by Atomic Rooster
You have proved that it's a legitimate copy. It has SP2 installed. You cannot install Service Pack 2 to an illegal copy of XP.
yes you can.
Anyway, like cobra said it's against the forum rules to help you get this illegal version of xp working. Yeah, you maybe did get ripped off but we still can't help you to get an illegal version of win xp working properly. Rules are rules.
I'd try reinstalling windows. If you don't have the cd key then download this to see which cd key you are currently using. http://www.magicaljellybean.com/keyfinder.shtml
edit: but you might have some trouble activating windows if it's an illegal version. So in that case you might run into problems if you reinstall. But to be honest there is a lot of info in the internet on how to get an illegal xp working. Like I said we can't really help you here but google is your friend.