I have Tranz Simulator2 and I'm trying to complete session "Wadalbavale to Karrah Bay" and I can't figure out where to start. When I open up the session the train is on the tracks with a red light at both ends. Not sure which way I'm suppose to go. I can't go the the turntable and I can't back up because of red lights. Also whenever I do get the green light, where are the general goods loaded? Any help is appreciated. I'm new at this.