I noticed that Carrara had some problem finding things like Daz Studio does, that is annoying, but when I pressed cancel on one item I was importing it asked me to designate the runtime path--apparently it was trying to find the stuff in the Poser 7 main runtime.   I had created a shortcut from my Poser library  file and placed it in P7's folder, that seemed to help with C5, but it doesn't seem to be helping in this case.