This is a grunge background and header that I built for Twenty Ten WordPress theme. If your not using that theme I’m sure you still find away (CSS) to use these with your site. Looks great with a transparent wrapper. Anyway I created it in a few different colors so if you dont like blue you can pick something else.
Screen Shot with the Twenty Ten theme:
First upload the header.
Then upload the background image. Below are the display options settings.
Repeat: No Repeat