Putting an image above the header (SOLVED)

[sally_maria]

This is no doubt a real noob question, but I'm wondering if there is a way of making an image appear above the header box on my journal - so I get the image and then the title etc, in the box underneath it?

The header image option on the customize style page puts the picture into the header box, with the writing imposed on it, which is not what I want.

I have a paid account, and I'm quite used to using theme layers on LJ, if that's what it takes, but while I can edit other people's CSS a bit, I can't write it myself.

Thank you very much for any help you can give me.