Version 4 details http://www.e-onsoftware.com/Products/vue4/index.htm New features in v.4 (from v.3) http://www.e-onsoftware.com/Products/vue4/NewFeaturesList.htm Version 3 details http://www.e-onsoftware.com/Products/Vue3/index.htm New features in v.3 (from v.2) http://www.e-onsoftware.com/Products/Vue3/Animation.htm Version 2 details http://www.e-onsoftware.com/Products/Vue2_1.htm Yes, you can use many lights, or just one, or any number between. UV mapping is supported. I've imported fully-mapped models in OBJ and 3DS. LWO is also on the import list, but I haven't used it myself. Version 4 is also supposed to import PZ3 and COB. The links above should answer just about everything. :)