Hi Suzy and Brian,
We agree that Suzy's suggestion is the easiest and the recommended procedure to load most WordPress plugins. For this plugin in particular as with most or all WordPress plugins that are free through WordPress.org, one should not have to access the directory to load, setup or administrate them.
We're sorry, Brian, you'd gotten detoured to the file directory and for our delayed response. I think our load options can be confusing when the easiest "...Or, search for and download "Easy Instagram" from the WordPress repository found when pressing 'Add New' on the Plugins panel in WordPress." loading option was listed last in a long paragraph.
For future users, that paragraph will be reformatted with the easiest option clear and first.