Read about that. But fragmotion got some sort of function too. Problem is matching fails. Some times it works...most times not.
Renaming...mhm.
Maybe i could rename the bones to match and then try again with fragmo.
Have to say the models i bought were really hard to convert. Normally it works perfect but those...Horror. The models sometimes screamed "kill me" like in the 4th Alien movie
edit:
Is that motionbuilder free ?
edit2:
I asked the dev of the 3d mesh. Even he sayed its not easy for non 3d artists to do. He said Maya. Iam really thinking of using MED Trial and error rigging. But to be honest, iam to lazy for that.