You can do all of that from the All Style Options section within the Kirsch style via the Style Manager. To remedy the problem I fixed, go into the All Style Options and find the panel surround section.
Replace the background field with:
HTML Code:
#D5D8E5 url(images/kirsch/gradients/gradient_panelsurround.jpg) repeat
In the next section below (Panel), replace the background field with:
HTML Code:
#E4E7F5 url(images/kirsch/gradients/gradient_panel.jpg) repeat
As for the header and footer, they'll use various classes so I can't really specify exactly what to change. The header and footer templates are located at the top of the All Style Options page. If you have any specific requests, I can probably help ya with them.