hi.
I download and install zenphoto and i put my translate file( fa_IR ) and from option" I select it.and its work.
but when user send a comment or I add a tags or add a title(farsi language) i see a problem.plz see the picture:
http://i34.tinypic.com/28anh49.png

is your character set option set to UTF-8?

yes. UTF-8

What version of zenphoto are you running?

last version.