Sorry for the poor quality and grammar errors. :)
You can find the latest version of that script here:
https://github.com/acclub/maxscripts/...
UPD: Forgot about springs, as usual! Damn it. AC requires all skinned meshes to have a pivot in (0,0,0) with Y axis be directed upwards. So don't forget to change that before adding Skin modifier.
There is always something…