FSX ATC Problem, Flightplan Problem and A321 Panel Problem.

Hi, this is my first time posting here and I really need some help on FSX. There is few problems.1. ATC Problem.In IFR Flight, after I have requested clearance and acknowledge it the ATC didn't transfer me to the Ground and so I could not continue the flight,2. Flightplan Problem.After I have made a IFR Flightplan for my flight I cannot see it in the GPS.3. A321 Panel ProblemWhere is the NAV button for the auto-pilot on the A321 Panel?I really hope someone can help me on these questions.Thanks