The graphics suck (I'm not a professional at this ... I kinda hacked them from the old Mikeb Skin? found on twiki.org (plus make a couple of new ones).
I also drew on a couple of tricks from Open Wiki? and fixed up the fonts a little and set it up so that you can double click anywhere in the topic and start editing the page (whee!).
Installation
All you need to do is unzip the attached zip file from the twiki root, then replace the empty left and right logos with whatever you want.
Enjoy!