Orac,
You're welcome and good luck buddy. Even if you don't try for a job with them, it's worth arranging a sit-down and having a chat about the correct route you have to go down to become a Scaffold Instructor.
As you full well know, this industry is a rumour-mill and there are too many opinions on how to do this 'n that, so it wouldn't hurt to get it directly from the horse's mouth really!
It's certainly a rewarding career path and you will always keep your hand-in the game so to speak.
Cheers,
Phil.