Changing the header

I want to start by saying thanks to the maker of this amazing theme. I am using it on a couple of websites right now and would like to use the full width of the current header with a background image (not the function included in the theme). I have been playing around with it but have not found any solution thus far. To clarify I would like the full white area to be covered by a background image and possibly the ability to add a banner to the right area of the header. I also would like to know if there are other color scemes available in the pro version and if there are other functions not available in the free version?   Again thanks a bunch for making this theme, it's great and easy to customize and use.