Ah - I thought this was a bug report about a mule. ;) I'm not sure... Hm. ::pokes around::
I've gone to your profile and by clicking on the "Blog" tab I can see what entries you've made. However, like you if I click to view your blog, I get that message.
HM. This is very interesting. I think it does have to do with the period in your username, actually. I can't double-check it at the moment, but users without special characters in their name or with underscores (_) have no problems with their blogs.
However you get that strange error message and users with hyphens in their usernames (-) get an actual missing page. Let me ping someone to the thread who may be able to look into it.
yanyan13: Is this something you can look into?