Warfare, up close and personal
One of the problems of trying to use server side software like this blog is that it becomes a soldier in an ongoing war. This blog was attacked by hackers and that resulted in Google blacklisting the blog.
This sort of warfare is being used by some as a means of entertainment; by others for commercial gain, or as a means of waging actual war as in the current Georgia conflict.
For this blog, it meant that it was time to clean up old stuff, get the URL updated so it made more sense, and check through the database to try to find any improperly inserted code.
So you may need to re-establish your user account and change your links. Welcome to the war as collateral damage.