Typically I'm having problems downloading your [glow=yellow,2,300]Example 2[/glow] so I had to get the bigger file. [glow=yellow,2,300]Example 1[/glow] includes 12 complete aircraft. Install these to the FSX\SimObjects\airplanes folder in the usual way. I tried one example & it works fine.

I'm sure you realise that these are FS2002/4 AI Traffic packages that might not necessarily be compatible with FSX. Other files might well be different & include repaints of the FS2004 defaults. These would obviously not display in FSX unless you install the aircraft they belong with.
I'm using the FSX Demo which is perfectly adequate for checking out aircraft, textures etc. I haven't tried the included Traffic BGL file as I have no way of knowing if it's compatible with the full version. I hope this is some help.