Ledonna and I already talked about this in a private message, but just in case anyone else has the same question, here's the answer:
It is easy to change the title of your lookfab blog. Just go to the front page of your blog, then click the "Blog Settings" link at the top left of the page. A settings page will open up, and under the "General" tab you will see a place to change the name. Just type new text into that box and then click "Save Settings".