Try to use AFCAD program, search for KORD, and check how many AFCAD you have. You should have 2 at most, the Stock (default) and ours.
As you can see from axiom message, he solve the issue by reinstalling FSX. Not that this should be normally necessary, but if one is not able to find the offending scenery in any other way, reinstalling might be the only option. As I've said, we can't certainly search all your hard drives for files that *might* create problems to our scenery in order to be able to delete them.
This is only related to the textures bleed through. The double jetway problem is an entirely different issue we are looking into, and it looks like an FSX bug.