I have a feeling that Carrara 6's VET export is not getting updated from Carrara 5's VET export. Further the Carrara 5 Pro FBX export doesn't support animation. (Though the Carrara 5 FBX import is seriously broken so maybe they will fix the whole thing.)
Perhaps someone could get the Carrara 6 SDK and write a plug-in to take advantage of the new features in the next version of Enliven?
Not intended as part of Enliven, but as a standalone product to either add to the bundle sold at Daz or used as an enticement to get Enliven for Carrara users or simply sold separately.