Okay, the thread title was not that great but sometimes it's necessary to get some attention, especially on the first day. 
Now, on topic: The generated maps are quite bad, in my opinion. Not one or two tiles islands, but still.... why not try it yourself? Add "cheat" behind the shortcut call and then uncover the map with ctrl-u. Only takes a few seconds to generate a few maps and check them out.
It is not possible to simply add seeds. Those "seeds" are not really seeds (seed = number from which something is generated) but xml files where the complete map is stored. So you need to create a new map and then you can probably put it in that folder.
Edit: Long explanation:
The folder is data/maps. In which there are a bunch of xml-files with "seed" in their name. Move those somewhere safe so the folder is empty (apart from the tactics map folder) and start a new game.
To activate cheat mode and uncover the map:
Change your shortcut to say
D:\Elemental\Elemental.exe cheat
(of course your game will be installed somewhere else, so change the path accordingly). After you start the game, just press ctrl-u and scroll all the way out to see the map.