The ut2003_2004_addon_installer.zip file you have requested: Tools and Utilities / Miscellaneous / UT2003_2004 Addon Installer - 58.45kb is not available. Perhaps try browsing all files for the game Unreal Tournament 2004 and upload any files you want to share or are missing. This is the only information we could locate:
All you need to do is point the program to the folder where your dowloads are (make sure that only UT200X related files are in this folder) and follow the steps in the program and it should install anything for you into the games.Note: Sorry, but This nifty program will take any mods, maps, etc. and automatically install them into UT2003 or UT2004.