I'm not sure if I can help you. Do you have the CD that comes with Unreal or Unreal Tournament? If you have UT, put the second disk into your CD drive. It will eventually ask what components you want to install, with the only box asking if you want compressed textures. Untick that box, but continue with the installation. Eventually, after clicking next several times, there will be a folder in your UnrealTournament folder that is called UnrealEd. Inside that folder is a file that when double clicked, will begin the installation of UnrealEd. Install it to your UnrealTournament folder. Then go inside the folder UnrealTournament\System and double click on UnrealEd.
Hope this helps.
Good luck,
John