I know this is a long shot, but...
Given that deep linking now works in the flash gallery, is it possible for bad links to resolve home? Say an image is removed or a gallery is renamed and URLs become dead.
Currently bad URLs from the folder level down to images resolve to a blank flash page. No main controller for folders and with controller for direct images. Which honestly is not awful if a menu is present. Certainly not the end of the world -;)
But is there a possibility of these resolving to the current theme's designated start instead?