Ok, from my understanding of the question, yes the controller always talks, so long as you talk to him/her first :P As for runway lineup, you will only be aided in the event you have filed an IFR flight plan and recieved a clearance for that flight plan. Then, ATC will get you on a basic heading for the runway but the actual job of turning onto final is up to you. In the "create a flight plan" screen hit "flight planner" and in "choose flight plan type" hit IFR. There ye go! Just experiment a little bit, you'll become an expert in no time.
