So I was going to browse the current themes listed on zenphoto.org/theme/

I pulled it up, and then clicked any of the sub-categories for 3rd party, etc and it gives fatal error.

Fatal error: Call to undefined function getParentAlbumName() in /home/www/zenphoto/themes/zenphoto-theme/search.php on line 179

Edit:
Also when viewing a theme entry, the following is seen below theme descriptions.

Warning: Invalid argument supplied for foreach() in /home/www/zenphoto/themes/zenphoto-theme/functions.php on line 35

Thanks, the theme had been updated and somehow I missed something...

Fixed now.