I tried your tip and still no terminals.
Sorry, but it's not possible. Are you really sure you did *everything*, including reply YES to the question "Do you want to remove the Addon Manager ?" and reply YES to the question "Do you want to remove the Couatl engine?" and installing the latest Addon Manager AFTER the scenery ?
Are you using the current Zurich 2.0 installer ? If not sure, download it again.
Also, after uninstalling the scenery, check you don't have any folders left here:
YourFSXFolder\fsdreamteam\ZurichX
YourFSXFolder\Simobjects\Misc\FSDT_ZurichX
If you still have those folders or files inside, remove them manually before reinstalling.