Theres only two working map hacks I know of.
First one lets you see minerals and the other one makes person dissconnect in game, except the game keeps playing. Its hard to explain but I'll try.
The hack sends a msg to all players saying that you have been dissconnected, but the game goes on as usuall, but when it is over the thing that says victor/defeat triggers something and causes SC to crash, therefore you get a dissc on your record.
But my friend specially desinged this hack on his own and it has about 10% chance of working, but that was a while back and I think Blizzard did something to him because I ahvent seen him since he hacked someone elses record.
By the way I like the new update to the site Skuzzy