Any cut red key with a TRANSPONDER will start your car, because its this which turns the immobilser off otherwise the code lights stays on and it wont start.
Have a little faith in whoever you bought the car off (dodgey in many cases i know!).
Or consult the handbook and go through all the balls about turning the key to the MAR position and using the master key to program in new blue keys to the ECU... cant remember what page its on but im sure you'll find it.
Ben.