I get this when I click on a photo:

Fatal error: Call to undefined function is_valid_video() in /home/vanstryn/public_html/display/zp-core/template-functions.php on line 2628

anyone got a clue? Tried to update to the most recent version and boy that fuxered everything up even worse!! I can't easily go in and edit thing, I have my system on a remote site that I paid for (I needed bandwidth). What did you guys do that hosed everything up? I'm sorry I didn't check last time I upgraded, I suspect that is what screwed me.

You may want to try re-uploading the Zenphoto files. I think there's a good chance that some of the files did not get updated, so you probably have mixed files from both versions.