Forget the export/import LWO function in ProPack, it does not work that well, I believe it supports only up to version 6 objects on import. Your best bet is to save your posed figures as obj's and load them up into Lightwave and reapply the textures yourself, tedious but it works. The other option you have is Greenbriars suite of plug-ins for Lightwave which do work really well.

Dominique Digital Cats Media