Xtract-4-mmd

Well there's to methods.

1. in xnalara export in model as a obj after, moving the mouth to be opened . So rigging the mouth wont be a pain later on. Import the model in blender. Export as a light wav obj. Flip all the textures upside down and save them. Otherwise, mmd will read them wrong. In any pmx editor import the light wav obj models.

 2. In blender if you have the xnalara and mmd scripts installed. Import the model, and export as a pmx model. This should have the bones intact. 

aHaHaH

Quoting your site:
"XnaPosingStudio (XPS)
...
Requirements 
Microsoft XNA Framework 4.0"

LOL ... Please make your home work! ... And do not misinformed the people

Quoting D1m0s  :
You obviously don't have any clue
and
You advice something that is BS and after that you admit that you are new to XPS... Who is an ass here? I don't want to be mean to you. I understand that you want to help, but please don't spread BS. Because the way that modern people think is: "Someone posted it so it must be true!". Tomorrow I'll see 100 comment's saying that XPS don't works...
like here
"XPS has stopped working"

==> So, Microsoft XNA Framework Redistributable 4.0 is wrong? I must to uninstall it and install 3.0, right? <==

how can i help you?