I think the problems you are having are due to two issues: Last waypoint too close to the destination airport, and STARs box ticked on the SID/STAR page. Your last waypoint (BIRPO) is only 5 miles out. PF3 works best when the last waypoint is about 25-35 miles from the destination airport, so try the flight with HABBS (about 32 miles out) as the last waypoint in the PF3 flight plan. The STARs box determines whether or not you will get vectors after your last waypoint. If you want vectors after you reach HABBS, you should untick (de-select) the STARs box. If you have the STARs box ticked, you will not get vectors when you reach your last waypoint. PF3 will tell you which runway is active and you will need to get to the final approach course for the assigned runway on your own.