blix nav bar height problem

http://www.musicleech.com/blog
I am running wordpress 2.1 and it is obvious something is wrong with my navigation bar.
it is supposed to look like this:
http://www.utheguru.com/custom-tagline-in-blix-krieg/

I don’t know which file in the blix theme i would be able to change this..

how do i fix it? thanks