I assume you mean http://mobhunter.blogspot.com That header is kind of cool but I feel like it's missing something. Maybe tabbed navigation at the bottom would work if you've got somewhere else to send visitors. I'd do away with the page rank and hit counter on the right navbar until you've actually got numbers that are impressive. Your posts are kind of long and might drive visitors away. Some of those really long paragraphs can be made much shorter or split into multiple paragraphs. Remember, people tend to like quick points, unlike my response here
Too much white space makes it look slightly barren. Try filling up the white space with a few snippets of articles or maybe advertisements.
The header looks nice to me... Maybe you can change body background color. I think there's too much white color that makes your blog a little bit empty. That's my opinion, but I could be wrong.