HSTuners - Broken lock by door handle... plz help

Hi,
I have a 1990 integra GS and it comes with standard locks, but the previous owner had an alarm installed so he had them wire it into power locks. The problem is that for some reason the notch that is used to open the lock right by the door handle is completely loose. It seems that it is not attached to anything and therefore once the powerlocks engage the only way of getting out of the car is by turning on and then off the alarm. The key lock system works fine, its just that part that is broken, I looked throught he Chilton's repair guide and couldnt really find anything related to my problem.
I was wondering if there is somewhere that I can get the entire part that I need incase it is broken instead of just loose or if anyone knows how this might be fixed