Directory theme

Hello again. I am getting so frustrated! I haven't gotten a single plugin to work they way advertised. Currently, I am working on making a site within my multisite using the Directory plugin. I cannot get the plugin to use the directory theme. According to the read me file:

"The “Directory” plugin package comes with a default theme. It can be found
inside “directory/themes/default” directory. You can use it straight from the
plugin or if you want to customize it you can copy it to your “themes” directory
and do your customizations there."

How do I use it straight from the plugin? I am having this same problem with a few other page/plugins so hopefully this will solve many of my problems.