I see. It is indeed a hard mesh to play with but the others are boring and already rigged.
Your link seems broken, so I'll come back later and try again, I'd like to see how you did it and see the differences with mine.
(This is how I put the joints)
After I'm done with the paint-skin thing I'm gonna try to animate see if she can walk. It will look a little weird yeap, cause as you said the model has its legs connected -among other things- But that's one of the things I'd like to learn to do, to fix a given model like this, so her legs can move freely.