I actually keep C6 with Transposer around just for this reason for specific Poser content. (of course Transposer only plays nice with Poser 6 and sort of P7)

Cloth dynamics is truly the missing link in Carrara at this point in time. Poser cloth is incredibly slow to calculate though. Programs like C4D render cloth dynamics in near real time. Hope Carrara adopts/creates some code to do the same. 

I saw your post on Soft Body and BWTR pointed you in the right direction using the Bullet Physics (under the motion tab in the properties palette) This has limited draping functions but isn't a full cloth solver. 

Mark