I have Zenphoto setup on my client's website. I put in a custom header and everything looks good. The problem is when you click on the galleries or gallery archive link I get this message:

Directory has no index file.
Browsing this site or directory without an index file is prohibited.

Here is the URL: http://fishingartworks.com/zenphoto/index.php

Any help would be greatly appreciated. thank you in advance

It looks like your server is not configured to include index.php as one the default index page files. Talk to your provider about this.