Window Regulator

As i rolled my window down last night in the drive through, i heard a series of cracks before my window dropped conviently into the door. After further inspection and taking the door panel off i discovered that the C shaped piece with the gear teeth was laying on the bottom of the door. Nothing appears to be cracked and the motor still runs, would it be possible that a screw just might have come loose and needs to be replaced or should i just order a whole new regulator.    

You will need to order a new regulator, to save $ go to Roverland.com They are about $80 compared to $180 at the dealer.