Hi. Lots of new posters here
Which instructions are you following?
1. If you run the script on page 21 that is referred to in the post that you have quoted, then you should not have to do anything with the file and folder paths.
2. If you can see the Mods button but you cannot click it, then you probably edited the MainMenu.lua file manually, and corrupted it. The most common reason for this is if you used TextEdit. When you type two hyphens into a TextEdit screen, it automatically converts them to a Unicode character for a single long hyphen, and that will not work. The .lua script them fails, and you get some corruption in the main menu screen at the bottom. You have to edit the file using a pure text editor like BBEdit or its free little brother, TextWrangler.
3. If you are trying to find the files in the hidden ~/Library/ folder and you want to copy and paste a path to do so, you have to paste the path into the dialog box that opens if you select the Finder's "Go to Folder
" menu command.