This appears to be a stand alone app and cannot be used as WP plugin. I suggest you unzip all the files to your local computer and edit the config file as instructed in the INSTALL file. Then upload everything to your server, then browse to the location indicated in INSTALL. (very similar to WP install from the sounds of it)
If you really want this app to appear on a WP page, create a custom page template that loads the app's page in an iframe. Create a page based on this template so you have a title slug to browse to.