Speaking of Alex and his vanishing templates, there is a simple solution.
Whether you use Blogger or some other tool like pMachine or Movable Type, you simply *must* save a copy of your template on your own computer.
Alex suffered a crash of his site and Blogger lost his template, forcing him to use one of their prepared versions.
Unfortunately, he wasn't using Blogrolling or some other outside linking server. That means he lost his entire blogroll as well.