• Download rdoctor.com Joomla! module zip file package to your local machine.
• From the backend of your Joomla site (administration) select Extensions  →  Install/Uninstall.
• Click the Browse button and select downoloaded zip file on your local machine.
• Click the Upload File & Install button.
• Set up invitation text and link.
• Set up styling according to design of your site.
• Note that module must be enabled before it will work.

If module is not installed properly, please read Joomla! manual:

• Installing an extension

If problem persists, please drop This email address is being protected from spambots. You need JavaScript enabled to view it. a line.