You can link P6 to your old P4 runtime. Open the library and click the "up" folder till you see "Poser 6" and "Downloads". Click the (+) a the bottom of the library. Browse to your P4 Runtime folder and click [OK]. You will get a new folder titled "Poser 4". Double click it, Poser will growl for a minute and you will have access to all your P4 stuff. To switch back to Poser 6 content just go up to the root and then double click Poser 6. This DOES NOT move the P4 library, it just links to it. Nerd3D