There is a bug in the light handling routine - if you remove the lights from your Poser scenes they will open in the new build. They have fixed it but are waiting to see what other bugs show, Rob said aiming for a Monday update (but I'd regard that as subject to change). DAZ|Studio base (ie what we have now) is intended to be free, as long as it draws in new customers and sells plugins and content, according to DAZ. It's Tellware - you "pay" by telling two people about it.