Webalizer GUI - Installation instructions
If you have never worked with Webalizer before, I recommend the plus-version of the GUI. After executing the setup program, Webalizer and the GUI will be installed automatically.
If you want to keep your existing installation of Webalizer, download the GUI only version. If you install the GUI to your Webalizer directory, everything should go automatically. Otherwise you have to specify the Webalizer directory, the first time you run the GUI.