The left part in the picture (the AirPort/Bluetooth assembly) is held down under a plastic tab that sticks out a tiny amount. Thus, it needs to be pulled very slightly towards the camera module in order to be able to lift out.
If you remove the orange screws (I did), note that the top one is under the ribbon. When screwing it back in, you have to carefully bend the ribbon back to get the screw underneath. Do not impinge on the ribbon when screwing it back in.
I also managed to skip steps 6, 7, 8, and 11. It is possible to get the superdrive out without disconnecting the camera, antenna, and subwoofer. However, obviously you have to be very, very careful.