To get the photo gallery "Gallery3" working on my FreeBSD 9.0 server one needs to patch the code that is in the ports collection www/gallery3 with this patch https://github.com/gallery/gallery3/commit/6b306cddc1f25ecfe054b0a1c9d0dc3536da51f6
(And of course you will need an install of apache and mysql + ImageMagick(or GD))
Then it works.
