Zvoni, language please!
Sorry, marco und to OP.
Just having a bad day.....
What really mystifies me: Since when do you need a port to Create a Database?
OP stated he has a Firebird-Server running, which listens on Port 3052 (instead of 3050).
You need the port to CONNECT to the Server.
Once you're connected, you can create, drop, change Databases, Tables, dirty socks, wifes, girlfriends without specifying which port