Well the animation would be done inside the modelling program itself and so would the rigging. it would literally just be triggering animations from inside construct.
Bones should be the same for all programs newt , well , for any of the well known ones anyway.
Looking at that library , there are quite a lot of useful function in there that weren't included. Multi-layered textures ( probably diffuse , norm , bump etc. ) , multiple UV support so that must mean multiple textures , and looks like full support for skeletal animations. And support for WAY more model files than just .objInstant2011-08-09 14:43:26