congratulations..that is a beautiful bike.
As to starting the bike, I'm not sure it is the "correct" way..but what works for us is I straddle the bike with the stoker clipped in and ready to pedal....with the pedal I want to start out with (my right foot) in about a 2:00-3:00 oclock position, I stand on that pedal and settle into the seat....the bike has started..and I hope the stoker has started to pedal.
Sheldon Brown's website has several good articles on riding and starting, including this:
http://sheldonbrown.com/tandem.html#starting
Enjoy your new bike.