I keep all my themes in the program files\objectdock folder. But that's another thing that I hope will get sorted out, I have OD folders all over my harddrive, everything really needs to be more centralized with all the SD programs.
Bebi...If your still on XP like me you can get rid of all the other folders in "My Documents" and just move everything to the ObjectDock folder. I deleted the stuff in "My Documents" a long time ago...and everything works fine. 