Windows XP IS version 5.1 right now if you already have SP2 installed.
Go to Start/Run and enter "winver" minus the "" and click Enter.
Reply with what it says.
Don't get confused with Internet Explorer 6.0.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.