Attached Link: http://www.ronknights.com/tutor/index.html

Ok, the different programs listed are 3D programs which do different things. Some people use different programs for creating Poser characters, clothes, background scenes, etc. Examples: Zbrush, 3D Max, Rhino. I think Vue DeEsprit (Spelling?) is mainly used for backgrounds or rendering?! The best to really know which programs do what is to visit their forums, and read a bit. Do you want some good advice from someone who is equally as confused at times? Take one program, say Poser, and learn that as much as possible. Then when you feel more confident, take another program. And follow that. You will find some excellent tutorials here at Renderosity. If you want some decent Poser-related tutorials, you can try mine.