I don't know if a default shader comes with this, but I'm pretty sure a shader will be necessary to make use of both the lightmap and the other textures.
With A7 there's no need for a shader to use 2 uv-maps, one for the shadowmap and one for tiled textures. You only have to activate the second uv-map in MED, maybe, not even that, but I don't remember. Somewhere in the threads about ventilator's blender exporter in the Third Party Tools forum is some more information.
