Attached Link: http://www.anim8or.com/main/index.html

if you were to export the head(or any other body part) from poser (as a morph target .obj)to a 3d application (there are free ones out there, in mags and such) and then alter the mesh of the 'head' - say pull out the nose - without changing the number of vertices. You could then go back to poser select the head of the figure, press ctrl+I and select the 'head'.obj that you altered as a 'Morph Target'. A dial will be created and you can morph between the two shapes of head. IE the nose will get bigger. for a simple, free 3d application for poser morphs try 'Anim8or'. As with anything it takes practice but you'll soon find that you are coming along in leaps and bounds!