Flynn, in my search to find a way to allow my WPMU users to be able to upload a new header image for their chosen theme (I've got over 100 themes available to them, but not all have a way to upload/change the header image), I found that somebody has come up with a nice way of doing it. You basically just have to add code to functions.php, which creates a new upload area/custom header option to just about any theme. Maybe you could incorporate this into ThemeFrame and even into Atahualpa, to make it easier to switch out the header image without using an FTP program.

http://wpmututorials.com/how-to/givi...ustom-headers/

Good find, would make the point and click Themeframe even easier to customise.

I've been thinking that I could use ThemeFrame to create totally custom themes for my MU folks. How great would that be? At the moment there aren't very many of them, and it's not a money-making thing, just a service to the community. But who knows where it could lead?