I get these errors in the log files on the web server if I click on viewing the image.

[Wed Jul 09 13:38:54 2008] [error] [client xx.xx.xxx.xxx] File does not exist: /home/virtual/site341/fst/var/www/html/kleurkaarten/images, referer: http://www.facet-design.nl/kleurkaarten/index.php?album=Effetre&image=effetre_004.jpg

I have not enabled mod rewrite and no .htaccess file on the server because the site is not visible if I place the .htaccess file on the server.
Is this a script error or have the put the restrictons on the server very strict?

This seems to be workig now. At any rate, I see an image if I visit the above link.

It works, that is not the problem, but I get the errors in the server log.

I have more Zenphoto albums and the give the same errors in the log files.

Have you done anything like change the name of the albums folder? I don't know of anywhere that zenphoto would reference an "images" folder.

No, I haven't renamed the albums folder. Everything is in the same structure as dowloaded. The only thing I renamed in all the installs is the zenphoto folder.