header image trouble

Hello,

I hope this hasn’t already been answered, I did a search, but it’s pretty hard to tell if what’s described in the post is the same problem I’m having. Basically I changed the header image file, and edited some code in the css and the header file, but now it looks like this: http://www.ohbliss.org/blog/index.php

It’s a bit hard to describe which is why I’m sorry if I am wasting anyone’s time and this has been answered before.

Thank you for any help.