Do you mean Hubbabubba's SCASM Tutorial? I would not worry too much if you are confused there. I kinda figured SCASM would lose most of the folks. For that matter, I would not be surprised if my AF99 Tutorial lost a lot of folks also, but the difference is that AF99 is a much simpler tool all around. It is just another Integrated Development Environment. The big difference that I see is that the SCASM TOOL would lose a lot of folks while the AF99 Tool probably would not. The Artistic part with both methods is the REAL value that Hubbabubba and I add and that part is difficult to teach.
BTW, here are a couple detail shots of the Richard Osborne Me109E.
First is a fairly clear view of the Pilot's Face.
Next is an aft view from inside the Cockpit.