I`ve installed the scenery. After havin started the fsx I could see the Docks, but no buildings. I know this is usual.
No, it isn't usual at all. The scenery will disappear *after* a few minutes, not the opposite (appearing after few minutes)
because in the addon menu in fsx there were only other addons like ivao... I couldn`t see the fsdt addon.
There's no way to use the scenery if something in your system prevents Addon Manager to run (so you don't see it in the Addons menu), let alone buy it.
The IVAO think looks suspicious. We know of problems because of bugged FSCopilot.dll that blocks executions of addons that are loaded after it. Usually this is solved by loading other addon first (changing the order of addons in DLL.XML file), and this is done automatically by our installer.
Try to uninstalling Zurich, then installing again, in order to give the installer a chance to properly rearrange the order of modules (this is a problem only with FSCopilot, as far as we know).
Another issue might be that the Simconnect version we need (at least SP1) is corrupted or not installed. It's not easy to fix this, if you have FSX deluxe version, you can try installing the SDK (found on disk 1), then *updating* the sdk from Fsinsder.com site with SP1a version. If you have FSX standard version, reinstalling FSX might be needed.