Custom maps

[Vic25]

I'm starting to play around with the map editor and its pretty simple to use but I was wondering what I need to do after I saved my map to play it in single and multi player.
Also if anyone can link me a page that explains scripting so I can do stuff like: http://www.moddb.com/games/men-of-wa...un-pocket-1944 and http://www.moddb.com/games/men-of-wa...f-liberty-1942 and other but similar stuff.
Thank you.
Vic.