Hi, I just installed zenphoto yesterday (1.2.8[4881]) and I love it so far, but comments aren't showing up. I am using the EnsellitisZEN theme. I get the text boxes to enter name, etc, and the comment box, but after hitting the comment button, nothing happens other than a page refresh. No comments show up, and they don't show up under admin either.

I have no spam filter enabled, and "pass" chosen as the action. I have tried it with notifications both enabled and disabled and it still doesn't work. Any ideas?

That might be because that themes is quite old, abandoned by its author and is not officially supported. You probably will have to look at our theming tutorial to update that theme to current Zenphoto versions yourself.