If you want to any theme suport sub-albums just copy all from album.php in themes\testing-dev to album.php in any other theme. I tryied with default-dark theme. You must custom make folders and sub folders. you can't use admin.

This is problem. pls help!
http://www.imagehosting.com/show.php/878595_howto.jpg.html

It should be universal, to implement themes you should use the Theme tab in the Admin page.