Did you READ the first post I made to this thread? It explains the problems people are having with imports and part of the reasons that have been discovered. I'm sure that more reasons will become apparent as we, the early birds, run it through the mill. 

The native importer works fine on anything created in Poser 6 or below (IE: Poser's 1 thru 6)EXCEPT FOR Dynamic Hair and Dynamic Clothes. There is NO guaranteed Poser 7 Support because they never bought EF's SDK for Poser 7. This means content and PZ3's created in Poser 7 will cause problems. Workarounds are being discovered and discussed.

It has difficulty locating some OBJ's and some Textures due to naming issues with external runtimes and possibly other reasons as well which are as yet unknown. It appears that C6's runtime search feature doesn't like to go back and forth between runtimes to find OBJ and texture calls from more than one runtime per item being loaded.