Okay, I admit it, I am the most ignorant person alive.  I downloaded FSX SDK and its updates.  Going to start>Microsoft Games>FSX SDK I can find everything about what it does, but not how to access the tools section that will allow me to manipulate AI aircraft.  I am among those not getting any of the military AIs even though I've gone to the airports identified in the Weapons manual and set the sliders where the manual recommends.  
I thought it would appear in the Add-ons drop down after opening FSX and a flight but it's not there.  Help!