Momcat, good question. The Face Room uses a 3D envelope that surrounds the head. The envelope is deformed with all the difference vectors and morph targets in the list above. The envelope has to be correlated point by point to the head that fits within it. Every non-standard head requires weeks of engineering time to hook up, correlate point by point, test and update. At this time the only heads that are currently correlated to work within the Face Room are on the shoulders of the Poser 5 figures. I expect this to change. More details as they can be confirmed. Non-P5 figures will work to degree, but the results will be unpredictable and potentially undesireable. BTW, all the P5 figures share the same head mesh, so they all share morph data. A note- If ANY 3rd party figure developers out there want to set their figures up to work in the Face Room, we'll invest the time needed to correlate those heads. But it does require a substantial amount of time and resources on our end to do so. Other than the Face Room, existing figures will work in every aspect of Poser 5. Hair, cloth, textures, materials, etc. will work on any other figure. The Face Room, just like morphs for Posette only work with the content they were created for. Steve Cooper