I absolutely think that a help file for the program with explanations of what every single thing does is the highest priority! Now you have to experiment with everything in order to know what it does, and sometimes it takes a veery long time to figure out even a simple thing.
You could also ask here on the forums, but i don't think questions like "What does 'linear damping' mean?" would be apprechiated if they started to show up too often.
Btw. What does 'linear damping' mean? I'm serious. <img src="{SMILIES_PATH}/icon_redface.gif" alt=":oops:" title="Embarassed" />