[UPDATE: This error seems to crop up a fair bit when Apple updates iTunes. Check the comments at the end of the post for some solutions – a number of people seem to have had many different ways of fixing it.]Geeze!I’ve been trying to troubleshoot an iTunes Error that showed itself a week or so back. Numerous trips to google and the Apple Forums have turned up a number of possibilities that could be the case on my system.I changed my computer name! On a mac its fairly easy to change your login name. Recently I’ve been leaving my Mac at work on a (Relatively) accessible desk. So I shortened up my Login name to make logging in a bit easier for me. This could have been one issue according to the forums. Changing it back had no affect.Now the issue i really had was a real bugger. I put a free song from Itunes in my basket, logged into the U.S. shop tried to add something to my basket and then got an error. No big deal I think. BUT the original basket tried to save got bumped or screwy. Deleting and reinstalling iTunes had no affect as the basket was in my account over at Apple so I had to contact Itunes support using the form at the bottom of this website. The process took three days and all is well. I gather a 5002 error is a rudimentary error for a basket issue or possibly for the downloaders ID name.