Install the Server app on your admin computer.
If you purchased Lion Server from the Mac App Store, sign in to the Mac App Store using the same account, go to the Purchases tab, and click Install.
The first time you open the Server app on your admin computer, do not click the Configure button in the "Welcome to Server" window. Instead, choose Connect to Server from the Manage menu.
This option (connect instead of configure) wasn't available.
Now I have 2 Servers. :-( Any way to deinstall the Server?
Deinstalling MacOS X Server from admin computer.
Retrieving data ...