BIM Server Control Center can not be started with its Dock, Desktop icon or from Applications.
Probably the BIM Server service is already running and its icon (or) is up in the menu bar. This is a limitation in Mac OS X, that when a service is running it is only accessible via the menu bar.
First locate the BIM Server icon in the menu bar, then when you click on it there is an option to open the BIM Server Control Center.
Please note: The running BIM Server service does not necessarily mean that the BIM Server was started.