White Space on Header

Who developed your site for you? You should know that there’s some spamdexing going on. If you view source on any of your pages and scroll all the way to the bottom, you’ll see a DIV that contains a bunch of links for buying prescriptions. The DIV is positioned off the screen so your visitors (or you) can’t see it, but it’s still there. It might hurt your search engine rankings in the future.

Did you create a different template for your blog page than your other pages? That beta.z7net address is definitely the problem. Take a look at your index.php file (go to Appearance → Editor) and see if you can see that URL hard-coded somewhere in there.