assuming you have sins 1.16/entrenchment 1.02, the galaxy forge maps NEED to be placed here for xp
Mine don't work when placed here- sometimes they show up under galaxy forge maps, sometimes they don't. But they show up 100% if copied to the Sins "Galaxy" directory and the Entrenchment galaxy manifest modified. Im on xpX64... maybe that has something to do with it... But the Galaxy Forge folder is hit or miss.
I made a map pack that has a scipted installer- you could take a look at that @ http://sins.terra-net.net/ . Also, the maps have to be the most current version. An updater has already been mentioned in a previous post and I have used it- so I know it works
DrGonzo