Great to see the video, thanks!!. The first thing I do stepping into the cockpit, is ask "have you done any flying before" and from there, you can get a feel for what the customer is capable of. With the clock ticking down, you can't afford a missed approach usually, so I am 90% of the time controlling the throttles, and due to the high risk of customers (ie non flight simmers) damaging the flaps by having to reach across, I work the flaps for them as well. You guys who have been flying before don't need so much assistance from the instructor, but for complete newbies, you can't learn to fly a 737 in an hour. So, we need to help them a bit. I don't touch the yoke at any point on the flight, and with most new pilots, that's enough to keep them swamped with things to do. Something as simple as getting them to put the gear down at the same time can throw us way off course. Let alone managing yoke, pedals, flaps and throttle on final when you've never flown before. If you go to F.E, make sure you let them know you are capable. The capable ones I get in (ie real pilots and simmers) I'll often jump in the back seat and let them do everything and let friends and family in the instructor seat. Given the comments about his flying for years, I'm surprised the instructor didn't let him work the throttles.
The Queenstown scenery is the Peter Lohr one with the photoreal stuff (from Robin I think). Freeware.
The GPWS would sound like that in real life, depending on the arrival of the aircraft, and the terrain. Of course in real life, they can turn the GPWS warnings off too
I for one would love to see your video Andrew!