Hi maparus,
in your situation, and if you are happy with the 2011.01 FullMonty, I suggest you don't upgrade but keep on using it. And if you want a fresh uptodate FullMonty just wait for the next edition, which should be out sometime end March / beginning of April (and maybe you can download it from a different place with a fast internet connection).
Again, there is nothing wrong or unsafe with using the 2011.01 release without updates, it works fine and there is plenty to explore and play with.
regards,
-p.