If your character is able to animate, see if the pose spells are added. Try them on both vanilla NPCs and custom companions. I don't play FO3NV, so I can't debug. Add a msg on mod upload page about your problems.
I did vk, and umpa didn't know what the problem was. The poses mod author hadn't responded, so I assumed he/she was no longer monitoring the mod, or just didn't know either. I have a couple more ideas to try. I'm really hoping I can get it working. The dance poses show up, they just won't animate.