I have been working on a mod and its is really close (I think) to running bug free. I changed most of the bldgs. When I choose to build Traing Camp (Barracks), the city will start building it. However, when it is completed, the game crashes. I have updated and even tried alphabetizing Pediaicons...I'm stumped. Any help?

There should be a common bugfix FAQ for modders.

Do you get any kind of error message?

There is no error message at all, just crashes and ends program.

UI had a problem with that in one mod that I downloaded where the Giuld was crashing my game. I just stoped playing it, but you are making the Scenario so you don't want to stop.
Sorry no help!!!