I have an almost similar problem. I am not showing up as unlicensed or anything and I have checked to make doubly sure that my email addy here and on vBulletin Members Area are the same.
However, I can't download or post anywhere else but here!! (Yes, I have tried logging out and back in again) Can the Admins or Mods please help or advice what else I can do?
Thanks!!
Please ignore that last post, it all seems to work now after an hour. Must have been some sync issue.