New version and map and booking flights.

[erangran]

Hello, first of all how do I know that I am running the latest version?
In the map when I use zoom (I am running the premium version) sometimes my plane gone. Only my plane I can see the others. I need to zoom out and then zoom in. Sometimes I can not see my plane.
I booked for flight. The date and flight past. How do I delete the previous flight?
Thank you