Hi Roy, as I said you are not useless its merely you convincing yourself you can't do it before you attempt the task calm down and go practice with the VCDS scanning etc, as long as you don't muck about with the codings you will gradually become more confident as you use it, case in point you managed to reset your clock through the green menu which I personally would not go near as on the later models you can fry the MMI if you get it wrong.
Steve.