Blender Help

I need a little help from someone familiar with Blender. I'm working on getting the structures, I recently finished in Maya, carried over to Blender, for eventual import into the game. The structures are set up for TrainLightMapWithDIffuse.fx (TrLightMap). The problem I am running into is the fact that I haven't gotten any of the formats to carry over multiple UV sets when I import into Blender. I've tried Collada, Obj, etc. So the easiest fix would be to import the structure twice, once with diffuse UV map active and then once with the AO UV map active. At that point I could copy the AO UV map, from the second object, to a 2nd UV layer on the first object. I cant figure out for the life of me how to transfer the UVs from one object to another in Blender. Anyone have an ideas??