Check your e-mail.
Fixed. Since i dont have Jedi Outcast anymore i cant test it in-game, it worked fine in modview tho.
Problem 1: You didnt rename the bone (at least not in the file you sent)
Problem 2: The bone is not in the skin modifier list.
Problem 3: There is a tag weighted to it.
The skeleton was meant for Jedi Academy and the MC5 bone was removed, so i had to reweight the hand_tag to the hand bone when JO seemed to work with MC5. This could mess up the force powers / saber movements. Take it for a spin and see if any problems happen.