[Import] Skins and Attachments problem

[guldtand]

First, i take a normal hero and attach a staff on his left/right hand, and it works! but when i change the skin to one I got from the hive, the staff show up on his left/right foot... So i tried to change the attachment point to the head and even with the imported skin, it works. Is there custom bone names following with custom skins?
All suggestions are accepted!