Where do I look?

[capybara_cafe]

Hello everyone,

I am currently using the "Nevermore" theme, based on "Funky Circles", and I have a few questions.

Here's what I would like to do: I have added a header via the "customize" boxes, but my header refuses to budge from the upper right hand corner.

Also, my background doesn't start till after the bottom of the header, so obviously I need to add the header in the code itself, and not to the customization boxes. But I have no idea how to get in to the guts of my theme. Not a clue where to look for it.

When I look under my layers, I see the customizations made via the wizard, and also the previous layout that I originally installed. When I click on custom css, I get a blank box. When I click on customize, I just go back to the wizard area. HOW do I find the code for my current style? I'm sure this is something totally obvious, and I'm just being thick, but I'm beating my head against the wall at this point, lol.

Thanks in advance for any help anyone can give a clueless DW newb!