I think the free version promotion ended a few months ago, but they run these kind of promotions periodically if you watch for them. (Nice thing is, the free version is still eligible for reduced-cost upgrade to the current version.) I don't think they have anything free right now, though.
If you're looking specifically for something free, you could try Daz Studio instead:
http://www.daz3d.com/i.x/software/studio/-/?