the way to achieve this is to attach your old Poser 4 Runtime folder ans a seperate runtime in Poser 5. In Poser 5 select "figures" and keep doulble clicking until you reach the top of the tree and you see a blue Poser 5 folder with a red dot next to it. At the bottom you will see a plus sign. Click on the plus sign and navigate to you poser 4 runtime folder. That's it. Welcome to Poser 5. Enjoy.