barrel

Hey guys, happy Easter. Can anyone point me in the right direction of removing the ignition lock assembly? To clarify, I don't want the barrel out, I'd like to remove the entire unit in order to get to the business end of the ignition switch. I have the lower cover off of the steering column...

I have a 2000 e46 coupe, it comes with the diamond shape key with the lock unlock and boot buttons. I have owned the car for around 10 months now and have had many problems, right down to the brake and air bag warning lights being covered up with card in the dash. The bloke who sold this to me...