I just have whatever came with Carrara 4 Pro as well. The only problem I've had is that it doesn't handle body part scaling as well as I'd like when importing (i.e: the static figure I get in Carrara 4 doesn't look identical to what it looked like in Poser 6). I want to add, I am exporting PZ3 files from Poser 6, and they import fine into Carrara 4. I ony use Poser 6, and my computer associates PZ3s with Poser 6.