Lol, that's the gui for the program you list in your guide.
Just to be clear (and just pointing out, not criticizing), both your method and the one in the video create package files for installing games to be playable from XMB. That's what I did as well at first, until mM updated to 4.30 and allowed managing all titles from there alongside everything else.
The mM method only requires you create the ISO.BIN.ENC, and not go the additional step of creating the package file. Whichever method you prefer is a personal decision; I want to load up my library and use the strengths of mM to manage everything without cluttering up my XMB with multiple titles. Either way thanks for contributing knowledge.