Eonet is more than a WordPress theme, it is also a suite of WordPress plugins. These plugins are for now free and available from WordPress.org here. All these plugins will work out of the box with Eonet Theme. You can ask us question about each on our helpdesk, you will get a faster response here.
In order to install then you can either search them through the Plugins page (Add New) or in the Eonet page:
Additional help can be found in each plugin’s page.