press H, select box1 and box2 then delete them ( i dont know how u created such strange objects), then go to motion panel, select one of your bones, then open assign controller rollout, select position controller and click the button with question mark, then select linear, tcb or bezier controller, repeat to all position, rotation and scale, then repeat whole process to all bones.
It was explained in art tools doc, but information wasnt too detailed | 
