you leave it alone, then you start the server and play it. ( Just don’t forget to configure the server (config.ini) and the client (boot.cfg))
Is your sql server opened? If yes, and config.ini is configured, you just need to change 1 setting in boot.cfg in LU Folder/Client. Change AUTHSERVERIP=0:<IP> to AUTHSERVERIP=0:localhost and then just open LU by legouniverse.exe and login.
TO REGISTER AN ACCOUNT: type register on the command prompt
What is your problem?