The AFCAD which is currently online for FSDT Zurich DOES have "standard" jetway, that is custom modules using the default CTRL+J method.
As I've said, if you have a GSX custom profile loaded for FSDT Zurich with adds GSX jetways, you must remove it if you want to see the jetways the scenery comes with. Also, open the GSX Control Panel and see if you also have an EXCLUDE file for Zurich, which should be removed as well.