I have been trying to download programs to the cortex for past few days but nothing has been working. I have read various documentaion on how to connect it to the computer and I have doing that perfectly except that nothing will still download. Useally the loading bar would get a quarter of the way full and then the program would freeze. What is going on? 
Please re-post this in the OCCRA Programming section for Mr. Center or Mr. Taylor to answer.
Off the top of my head I would say you did not build the program or have an error. I am not the expert in this however.