I obtained right the same situation when I tried cloning the module.

I did it using a script which changes strings:

myalbum -> skany
_ALBM_ -> _SKAN_
MYALBUM_ -> SKAN_

and changing filenames of template files.

Now I can access the admin pages and change preferences (I checked - they are written to xoops_config table, especially the photo path '/uploads/skany'). But the environment check still indicates photo path like 'XOOPS_root_directory//1.jpg' - without subdirectory and with double slash. Also I have graphics filter NetPBM set, but env check shows GD.