Let's back up, you skipped about 10 steps in your description.
You installed XP Pro as a clean setup it looks like correct? Did you run MS Updates to get all the patches? System drivers OK?
Is the only thing not working is that Media Player won't go past 10? What errors do you get? Try this downoad http://www.microsoft.com/downloads/en/details.aspx?FamilyID=1d224714-e238-4e45-8668-5166114010ca