What did you install?
Renegade X - 0.55 Beta (UT3)
You have to choose Renegade as the last subfolder at the install path. And you need to install it either into your MyDocuments folder or into install folder. In any case "\Renegade" has to be the last characters
If you install it correctly with the correct folder, you can play it with the mentioned shortcut or the executable "Renegade-X.exe":
C:\Users\*USERNAME*\Documents\My Games\Unreal Tournament 3\Renegade
C:\Users\*USERNAME*\Documents\My Games\Unreal Tournament 3\Renegade\Renegade-X.exe
PS: Renegade X (v0.55 Beta) is a TC mod.