I ran into the same problem: installation went perfectly, I could access the admin page, and could even upload pictures. But I couldn't view them.

As a simple fix, do this: change the "$conf['mod_rewrite'] = true;" to be "$conf['mod_rewrite'] = false;"

You won't have "pretty" URLs, but you'll at least get to see your photos and albums.

Once I get the "basics" working, I'll go back and figure out what I want in the rewrite rules.

i have the same problem i think, and dont know what to do.. the files show in the ftp under albums but not in the gallery..

example:
http://www.sarah-karin.com/zenphoto/

and no thumbs and normal sized pictures

anyone who can explain it to me? and help?

i se it tries to get the thumbnail from a folder that dont exist.. it should get it from the folder album not the rootfolder i think