Hello! I recently downloaded the Tibet AddOn Scenery for fs9. When I go to the airport the terminal and taxiways are screwed up. Can somebody please assist me with this please?

If you would tell us which file you downloaded (complete zip name) and what you mean by the terminal and taxiways being "screwed up", perhaps one of us can be of help.I am guessing it is an enhancement by Jan Martin. If so, his documentation tells you where to download the required afcads - they are not normally included in his packages.