I use the MDD exporter to import Poser figures and animation into Blender, One of the more annoying things is (especially with Cycles) is I have to add all the materials manually, and for some reason it likes to invert the grey-scale maps (Solution is in the node editor to add an invert color)

Is your script compatible with the MDD exporter, because the built in export options for Poser will only export "figures" not props into Blender.