step 1 download & install either winrar or 7zip I suggest googleing them
step 2 download & extract my sins map updater v2 all files into a folder on the computer
step 3 create a shortcut to the sins map updater.exe on the desktop
step 4 make sure that all maps are in the galxyforge folder beside the mods folder ie xp C:\Documents and Settings\'user name'\Local Settings\Application Data\Ironclad Games\Sins of a Solar Empire\GalaxyForge or for vista/w7 C:\Users\'user name'\AppData\Local\Ironclad Games\Sins of a Solar Empire\Galaxyforge (note the two folders after the user name are hidden so you will have to UNHIDE the hidden folders in folder settings
step 5 run my sins map updater
step 6 click on 'find galaxies'
step 7 click on 'fix galaxies'
step 8 click on 'exit'
step 9 run sins start a new game then click on the change maps button untill you get to the galaxy forge group, then choose the map you want to play & enjoy
hope this helps
harpo