How Do You Program A Terminator?

In the recent film Terminator 3: Rise of the Machines the Cyber dine system model 101 played by Arnold Schwarzenegger was reprogrammed by his advisory and far advanced terminator T-X played by Kristinna Loken using part of her body components. Both in this movie and the film Terminator 2 the model 101 says that it was reprogrammed after being caught and was resent to the past. It is believed that humans then have developed the capacity to reprogram the machines.
     
Perhaps if the scientific community was given unrestricted access to the terminators they would master the technology to reprogram them. It was humans that gave rise to them anyway. The fact that in Terminator 3 the model 101 suggests near the end of the film that his system has been corrupted that the cyborg functions very much like a computer.