If you don't see FRITZBOT in red as shown in the
wiki in the mods submenu of ET then I would say you did not create the \fritzbot sub-directory and put the FritzBot ET dlls and pk3s in that directory. Please double check where the files were created. You should see the directory structure AS indicated in the wiki, and THE FRITZBOT ET FILES SHOULD
NOT BE IN ETMAIN.