Hey, someone mentioned this model to me, looks great! I also tried to make it, but the sword is busted on mine and I didn't fix it.
Mine has working FaceFX though. Because I wrote Retera Model Studio I knew why it broke, so I made a computer program to regenerate working facefx. The problem is the bind pose chunk.
Although the audio is too quiet, this video that I made for the techtree contest includes a clip of the riderless arthas talking:
You can jump to time 1:41 for an example of what I was referring to.