Hi,
I am using Coppermine since one year and find it very cool. I am already using the right system to authorize some users to see some galeries, some not.
But I was wondering if there is a way to specify "this image can not be seen unless you're a registered user".
Please let me know since for me it's a very important feature...
http://forum.coppermine-gallery.net/index.php?topic=36322.0
This plugin might be what your looking for.