Not to repeat everything stated above by Morqque and Calvary, but there are helpful YouTube videos that go step-by-step on how to download your map such as this one (http://www.youtube.com/watch?v=vI7dtnqtsDw).
A lot of players' maps are in a .zip or .rar file when you download them. Make sure you're extracting/unzipping the folders before putting them into your game. It's also important to make sure the .fhm file is in exports as well if you feel that the other steps have been completed.
Hey! were you able to resolve the issue?
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