were would i get sysprep for XP pro SP3?

http://www.microsoft.com/downloads/en/details.aspx?familyid=673A1019-8E3E-4BE0-AC31-70DD21B5AFA7&displaylang=en

mmmm im sure thats the one i downloaded before

were would i get sysprep for XP pro SP3?

You should use the version of Sysprep kept in the deploy.cab on the XP install media. XP sysprep is version dependent, which is probably why Microsoft decided to include sysprep in their OSes starting with Vista.