Helmet attachment on Portrait

I merged a footman helmet onto a knight's portrait, but the helmet doesn't move with the rest of the model and I need help on which bone to place it on.

Edit: I found it on a previous thread. I got it to work by changing the matrix to 9.

just sort of play around with different bones and see which one ye get to stick. it takes patience.

I found that it helped me to look at the notes next to the bone and parent bone. Then I counted the bones from 0 and got the ObjectID of the bone I wanted, which I put into the matrix that I wanted to change.

so did that help? where are you at in the MDL?

I'm finished, but some of the geosets aren't aligned perfectly.

Here's my knight just after I put a helmet on him. (Different model)
Free for public use.

very cool man. i like it.