Hej!
Did you solve your problem with the template? I see you don't have any answers so I'll try to help you even though your post is three weeks old.
That particular part of the template is actually a png-picture. Locate it, change it (for example in photoshop)and put it back in the folder (with the same file name, of course). That should be all really. Oh, and don't forget to clean your webbroser chache before reloading your page/template.
I'm also tring to customize 'Coolness' so if you have any tricks you want to share I'll be more than happy!
Good luck and grattis till Björgens silver