I am late to this topic and probably wont help you but I will leave this for others to find. I too did not have the 3rd Nav Page (which I wanted to import flight plans from SkyVector). I did a repair and then reinstall of the GNS400W-500WSeriesTrainerLite_330 which comes in a zip in the C:\ProgramData\Reality XP\Common\GnsTrainer folder. Once I did this I did get the 3rd page of nav. I hope that helps someone.