Fast Gallery is my baby. It’s an easy yet powerful image gallery module for Drupal. Unfortunately I don’t have the time anymore to maintain and to improve it. Do you want to be that person? Well, just contact me and I’m more than willing to help you getting started.
There’s some documentation but a lot of it is outdated. Hey, instead of complaining, go ahead and write something:
Are you looking for a start into the Drupal community? This is your chance! Module has about 1000 installations. There’s somebody working on the D7 release… but I’m sure he could need some help.