So I've downloaded some maps at epicwar.com. And I thought I had to paste them in the download folder; so I did.
But the maps looked like this :

So I've decided to try to open them with the World Editor (other maps are opened with World Editor) and here is the result :

And finally when I try to host those maps, they don't appear in the map list as you can see in this picture (the x11 version should be there) :

And the question is: Did I something wrong? And if I did, what have I to do to get the maps in the list?
Thanks.