Hi Shelly:

Poser Physics is an plugin (or Python Script) really, that enables some physics modelling in Poser.  It's really pretty cool.  However, it does not (yet) work in Poser Pro 2012, and I'm not sure about 2010.  I last used it in Poser 7, but it is sold through Content Paradise, and I think they have a link to the maker's page there wher you can find out the latest news on an update.

 

Take care,
Tim