You must open the UnrealTournament.ini file that is located in the System folder of your UT install. It is a text file and so can be opened with notepad/wordpad like applications.
Scroll down until you found : [Engine.GameEngine]
under this category, you will notice several ServerPackages=blabla
Just add after the last ServerPackages=blabla , the server packages lines you are adviced to put in the readme text.
Scroll down until you found : [Engine.GameEngine]
under this category, you will notice several ServerPackages=blabla
Just add after the last ServerPackages=blabla , the server packages lines you are adviced to put in the readme text.