AI aircraft add-ons

Problem: I have added AI aircraft (PBY's) and scenery from ALPAsim's PBY package. I have these planes with full textures at The Wake Is seaplane base, and the airstrip. But, the landbased planes are plain white with no textures. Same with the landbase planes at Midway. (I have none at all, at the Midway seaplane base. I also have all of my AI PBY's, in my <create a flight>/<selected aircraft> menu. Is this correct?? How do I add AI aircraft to an area, and how do I get the textures on them? I have no clue how I got the ones I do have, where they belong?????

HELP! 🙄 Blinky