Yes, I am using Poser 6. I don't have propack with me but would using daz studid could be worth a try?

As for the Compose tool, I downloaded it off of link from PhilC's website. But from playing with it a little bit, I don't think it could fix that grouping problem because in poser, whatever obj file it reads off displays the same problem. I may be wrong on this because I am new to compose.