I don't remember ever losing poses and expressions when importing to Vue from Poser.   Is that V5I?  

My main problem with exporting to Carrara or Vue is that materials seem to disappear on the way.   I am guessing that Vue and Carrara read texture JPGs without any problem, if they are pointed in the right direction, but they can't cope with the nodes and stuff in the Materials Room.   Does anyone know if that is correct?   Carrara slows down dramatically when it renders hair.   Vue takes forever (and then some) over water and reflections, in my experience, but I love the results.