You could call Quantum Bicycle Manufacturers (Perth - 08 9443 3407) for advice - they are authorised repairers for CF frames for Giant and maybe some other brands. Aldo there was sent my bike by an insurance company after an incident with a car, and was very helpful.
after an accident with a set of roof racks i snapped one of the dropouts off but after checking the cost of buying another time carbon or colnago star fork i might try and get it fixed!!
IMO don't even think about getting them repaired - there may be internal structural damage to fork (that isn't visable) - there must have been a high load to snap it off - it's a throw away item now. A repaired fork 60kph down Oliver's Hill ... wouldn't want to be behind you!