I use Poser 4 so much I was very leary of combining the two softwares, I wanted the ability to use them both separately until I was able to master Poser 5. So what I did, is I installed Poser 5 into a different directory folder, so when I start Poser 5, I do my thing. Now I want to use my Vicky which is in my Poser 4 application, but I don't want to copy and paste everything I need for her over here and have duplicate files, so Poser 5 allows you to link them, like open up my Poser 4 inside of Poser 5 without installing them into Poser 5 and then it takes on the whole file....there is a link here to how to do it, I will have to find it and then you will see. Sharen PS: as far as the set up room, I am still not sure of it yet to speak and give advise.