I can't be totally sure what's going on, as I only have C4Pro until C5 is released. However, I have Poser 4/5/6 all installed, store everything in the Poser 4 runtime, and point C4 at Poser 5 when importing PZ3s, without problems. Note that the irises not showing up may be due to the "Eyeball" material being opaque. That tends to happen every once in a while. Poser 6 is my friend ;) The files aren't importing as AVIs, Carrara is calling the render "AVI" because it's somehow been set to render all frames instead of just current frame.