That first path is where I believe Links was installed (i.e., the default path of the Links installation), but I could be wrong. If you installed the game in a different directory, then that path will be incorrect. I built that tool to help people find certain files, but have never had any feedback if there are errors with it.
You could just search your entire hard drive(s) for that file rather than browsing for it manually (make sure hidden files are shown before searching, just in case). Did you save the MOPTOTAL.TXT file after playing the round?