I believe I have seen the correct Preferences panel on this computer and I know it displays properly on another computer.
And the answer is…
On the Advancd tab in the Preferences window, click on the lock that says ‘Unlock Panorama X Server on this computer’. The extra ‘missing’ server tabs will then appear. Kinda seems like it should say ‘Show Server Tabs’. 
You are not really locking anything but just exposing the missing tabs. Be happy.