I hope someone can answer this question for me.I have just loaded FS9 and once again I find that the smaller town scenery is not much better then the previous version.I have a detail scenery file of Rochester NY, which has a large amount of the city buildings on the lat/long locations. I made this file and used it with FS98 and then with FS2002.FS9 has a much better Airport (runways etc etc).My question is:Is there a way to bring the buildings and anything else from my scenery file into FS9 and combine them together?

You can just add the folder where you have installed that scenery to your scenery library and then it should show. If that scenery also contains the airport you could try to load only the BGL files that contain buildings.