There is quite a lot of information/discussion on the forum if you search around for it, but in any case these are probably what you are looking for:
AHG Driving Centre : Rider Training Australia : Advanced Ride Day
The ARD has everything you are looking for plus a chance to have a play on the little track out near the airport. Not sure if scooters are catered for so maybe you should check first.
Alert Motorcycle School
The Advanced Roadcraft course is more road based than the ARD, and is also excellent. Again not sure if the scooter is suitable for this, but if it isn't they can hire you a 600 Hornet for the day as part of the deal.
I have done both of these and they do wonders for your skills and confidence.
Good luck and welcome to PSB
