I noticed that the animation components library for XNA 18.104.22.168 was released two days ago. It has big difference from 22.214.171.124. It's impossible to build old example solutions with these new DLLs.
I had read source code and some tutorials in free time. The excellent update for me is that it makes possible to define the plural animations by XML. Most of 3D tools can define only one animation. In this method, developers can fetch the plural animations from one animation by dividing frame.
It seems that AnimationController for models was replaced with ModelAnimator. And, the specific X file importer was added. That is the compatible importer with MS's importer. Umm..., I have never tried it, but it may be possible to load various X file correctly.