coppermine photo gallery and 4images gallery
These are very large installs with lots of options most people do not use.
I would take a look at [hotscripts as you can have a nice photo gallery with 4 pages - index page - display page - css page and an admin page. My [URL="http://www.rubble.info/gallery/Gallery.php"]gallery](http://www. hotscripts.com) uses 4 pages; I suppose you may need more depending what you want to do.