Newby Question - Directory Plugin - How-To

I have another rookie question.

Directory Plugin

I have Directory installed and activated. Went through the instructions and did what it showed.
Now. How do I get it to show up? How do I actually link it to my menu item called "Business Directory"?
So people can begin adding their info.
On the Content Type tab there are Post Types, Taxonomies & Custom Fields that are blank.

I'm a rookie here.