Some fields of the rss feed (managingEditor, webMaster) contain the email address of the admin. This is not a good idea, because it delivers fresh new food for all the bad guys like email harvesters, spammer... You should use the admins name instead.
I also discovered a small bug in printTags function. Generally it works very well. But if using it from default theme within "image.php", it generates links like this:

www.domain.tld/zenphoto/zenphoto/index.php?p=search&searchfields=4&words=search_string

The sub directory where zenphoto is installed shows up twice in the link.

Regards,
Steffen

Thanks for mentioning the rss feed issue. We will correct this.
The printTags bug is already fixed for the next svn.