How to turn animations from blender game engine to nla tracks?

I would like use this model for “Open Dungeons”(open source Dungeon keeper remake); but for that i need all animations being Nla tracks, and i can only find (and turn into Nla) “attack”; i guess all the others are handled by some kind of sorcery by the blender game engine. Its possible to turn them into Nla´s as well? Could someone help me here? Thanks for your help.

http://www.blendswap.com/blends/view/26798

so far i can only find one animation into the armature; but if i can see many more into game engine mode, it means they exist somewhere , rigth?

Have a look at the action actuator. You might notice you can have more than one.

Thanks Monster, i also received a very accurate answer by the model creator, so, for anyone who sees this in the future, its possible to do, the answer is in the blendswap link with pics included.