You should not need to set the web and server paths in the latest version. (Are you using 1.0.8.2?) That should be done automatically. Try commenting them out again.
If you really want to set them manually, the /zen is fine, but then the SERVERPATH should be `/home/members/jeninfreedomtheatre/sites/friendsofthejeninfreedomtheatre.org/web/zen` with the /zen on the end, as it points to the zenphoto directory.
Try it without those lines enabled, it should work. You may have a different problem.