That's because you haven't activated your blog yet.Click here.
I think if you click there it should take you to the "I agree not to post dongs" page and let you sign up for a blog.
I have two words superglued together in response to this:
HOORAHAAAAAAGH!
"Is that good or bad?" "Well, let me put it this way Eddie, the possibilities for Tiberium no rep system HOORAHAAAAAAGH! are... limitless!"
In all seriousness, probably good long term.