Interbase and Delphi 5 - am I missing something

I have just bought Delphi 5 professional under the impression that it comes
with a local interbase server but after the install there appears to be no
way to start the server. Trying to load the interbase software separately
you can either load just the client or server and client but the latter
requires licence codes which you have to purchase. Am I missing something ?

thanks in advance