It should be noted that this mod has been removed now.
There has been a validated security issue reported regarding the mod, and given the absence of the author and the license, which prevents us from releasing an updated secure, version, we have opted to remove the mod comoletely. From our mod download site.
It is recommended that anyone currently running the mod considers removal of this mod. There are three other gallery mods which are all currently supported by their authors (although some of them are paid mods)