I see many confusing things in your screencap but no explanation of what you actually attempted, how you attempted it, and what actually happened.  Apple help will not have the knowledge about installing DS content, so that's a waste of time.  If you are trying to install directly into an open program, that will not work either.  Your installation process must be from folder to folder, there is no other way.  What part of my little tutorial did you not understand?