Jon, Under Window/Joint Editor, you will see a Dialog Box... Mainly, you can experiment with this to figure out what everyone is talking about. Once you've done that, you'll be in a better position to Understand Joint Parameters, and what's involved with them. You also may want to make use of the Poser Tech Forum for further discussion regarding Joint Parameters. (it flows a bit more slowly, so it's easier to keep track... Link over there --->>>>