CONGLOMERATE of issues ...

I just have a couple things I'm trying to clear up. First of all, does anyone know why when flying with FSHost in FS9 I was able to see other players' addon aircraft without having the aircraft myself, but in FSX, other players' addon aircraft always look like stock FSX aircraft?
Next, does anyone know of a .air file editor for FSX?
Next, does anyone know if effects are visible to other players, such as bomb-dropping effects or fire retardent effects?
Finally, I'm having trouble creating AI flightplans for FSX if anyone knows how to do this. I have all the flies copied to the correct folder on the desktop called WORKING. This is what the command prompt looks like. Let me know if you know what I'm doing wrong ... :
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Josh>desktop\working\trafficdatabasebuilder
Traffic database builder for Microsoft (R) Flight Simulator 10
Copyright (C) Microsoft Corp 2001-2006. All rights reserved.
Usage:
TrafficDatabaseBuilder [command-line-parameters]
Required parameters:
Next, does anyone know of a .air file editor for FSX?
Next, does anyone know if effects are visible to other players, such as bomb-dropping effects or fire retardent effects?
Finally, I'm having trouble creating AI flightplans for FSX if anyone knows how to do this. I have all the flies copied to the correct folder on the desktop called WORKING. This is what the command prompt looks like. Let me know if you know what I'm doing wrong ... :
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Josh>desktop\working\trafficdatabasebuilder
Traffic database builder for Microsoft (R) Flight Simulator 10
Copyright (C) Microsoft Corp 2001-2006. All rights reserved.
Usage:
TrafficDatabaseBuilder [command-line-parameters]
Required parameters: