header code doesn’t match what I see

I am using the Carrington Blog 2.2 theme. Under Appearance > Carrington, I have selected “yes” to Customize Header Image and selected the image that I want to use in lieu of text for the blog name in the header section. I’ve seen it. It looks good.

I want to be able to make that image a link, or add a link to the home page within the header area, near the login or logout link.

The trouble I’m having is, when I got to Appearance > Editor, I don’t see that the code in header-default.php reflects what I am actually seeing. The header.php looks like a placeholder file. I looked in the css file to see if the #header code is there, but I can’t find it anywhere.

Can anyone tell me where the code is located? Thanks!