What I'm looking for is a freeware/open source web album tool that allows me to put pictures on my server, so that I can refer to them as a web album with a url as www.mydomain.nl/category/albumname/.

SimpleViewer is such a program. In addition to the functionality this tool offers, however, I would like to be a able to customize image and thumb nail size. An option to show an image full size (original size) per mouse click on the album image would be nice too.

Does any of us have experience with such a program?