...and don't get confused by the filename extension ".pz3". The same extension is used for scene files in both Poser-3 and Poser-4 (there is no ".pz4" extension). If purchased separately, DAZ's Vicky & Mike figures will (should) work in P3 -- except, IIRC, there is a limit in P3 on the maximum number of MorphTargets that can be displayed per body part, so some may not appear. (was that patched prior to P4?)