I have an humble question for those who can work with 3Ds.

I am dying to have wow models with weapons. But WoW models have quite unusual bones, they are in blocks and on the model right side. I merged the weapon, unhidded all so now I am able to see both blocks of bones, the weapon and model. Now I need to link the weapon to the model, so it follows the animation.

But how to find the bone n*47, which is the right arm bone, no idea...If we link the weapon to the hand by clicking on the hand, nothing happens because the bone is not there, but on right side. So far, the weapon is attached to the model, but it is moving weird and detached from the body at some animations. Please help.
(big image, warning)
(Edit: doesn't matter, I found how)