The problems in the back of the P7 hands isn't a hole.  It's an added and unneeded vertex.  Even Wings is good enough to go in and delete it, resave the .obj, substitute it for the original and she's fine.  I don't know about the head mesh, as I don't use the P6 version.  That one has some joint problems even worse than the P7.  I don't remember which version of wings I had to use, I know there was only one version I had that would work. The one before and the one after just crashed trying to load it. 

Doric.

The "I" in Doric is Silent.