If you can, try hooking up a 4.8v battery pack straight to the reciever. That way, you should be able to power-up and test your servos etc. If they still don't work, then you have a problem with your receiver.

If the servos work fine this way, but your ESC just beeps at you when you hook a battery up to it, either you need to place your throttle stick at zero throttle, or your ESC is toast.

Is it an Align ESC?