Adding downloaded maps

Ive downloaded a few maps that i want to play from the link provided in the downloads section of this site. Problem is that i dont know exactly where and what i need to put into the folders.

I have tried the c:\program files\Sins\Galaxy directory and the C:\Documents and Settings\username\Local Settings\Application Data\Ironclad Games\Sins of a Solar Empire\Galaxy directory.

Both do not show the maps i have downloaded to play in the game. What am i doing wrong?