Hi
Zenphoto version 1.3.1.2 [6104] (SVN)
WampServer
Windows 7 64
I tested this version and I have a problem with saving in other languages. Multi-lingual is checked.

Can you select other languages and see the translations on normal zenphoto items? I know I have a problem with my local Wamp installation that translations do not work. (Don't know why at present.)

Yes I Can select other languages. Problem is with fields from page and news.
Examples:
-add new page,
-saved title, context (english, polish),
-after saved and load field for polish language is empty.
Tested for other language - the same problem.

Ok, I can reporduce this on my system for the "textarea" language strings like description. Seems to work for the "text" ones like title.

I have found the issue and will make an update to the development stream shortly.