I remember Traffic tools in FS9, can you use it, or something like it to create AI traffic in FSX?
Thanks

Right now, the easiest way to do that if you do not know how to deal with the new FSX traffic.bgls is to use the FS9 method to create traffic files, and then use FP_FS9_FSX to convert them to FSX use.
http://aifs.pvdveen.net/That will also convert FS9 flightplans such as WoAI, PAI, Ultimate Traffic, etc to FSX
For FSX airport editing, the best solution right now is Flight1 AFX
http://www.flight1.com/products.asp?product=afxv1