I personally havn't changed the Start Button on Windows XP, but from just searching on the internet now I saw there are a few methods on how to do it. (With windows seven, there is a program you can download, but I'm unsure if there is for XP). I don't want to link you something I don't know works, so I'd have to say the best thing you could do is search around a bit for a method you feel comfortable with trying. I wish you luck, I hope you can find a way. Sorry I couldn't lend a hand!