Questions for Mamma Mia!

What logos can I use during our show?
Am I unable to apply for rights if my school has no auditorium and uses a local theatre to perform our annual musical production?
Mamma Mia JR?
I am trying to contact someone in licensing at MTI without any luck. What is the best way for me to contact someone?
Rehearsal tracks
Are we allowed to change some of the keyboard scores to wind instruments instead?
Production Pro/RehearseScore
Mamma Mia