Creating a franken-layout

[sally_maria]

I like the colours and images in Koi, the Wide Open layout, but I prefer to have my entries and sidebar modules more clearly defined. So I had the bright idea of trying to use them in an Abstractia layout (Au Lait, to be precise, as the colours seemed to match best.)

I can change the background easily enough - you can see it on sally_test but even though I have the file name for the header image, putting it into the header box on the Abstractia layout doesn't seem to do anything.

Am I attempting something beyond the powers of man? or is it just something obvious that I've missed.

Thank you for any help you can give me.