Noob here, but the search function only pointed me to the galaxy forge beginners guide, which doesn't really answer my question that I can find. 
I've downloaded a couple of custom galaxy maps, but they do not appear for me to choose when starting a new game.  I've tried placing them in programfiles/stardock/totalgaming/sinsofasolarempire/galaxy next to the other maps, but they're a no show after starting up the game.  I'm running 1.1 beta. Any clues where I should put them? 
Anyone care to help a clueless old geezer blow stuff up good?