You can install any JomSocial modules through Joomla!'s global installer.

After downloading the module installer, head on to Joomla! universal installer as shown above.

Then, click on the "Browse" button and look for the installer that you have just downloaded and click on the "Upload & Install" button. If the installation succeeds, you should see a message stating that the installation of the module completed successfully.

Configuring a Module

Read more on how to configure them here:
http://www.jomsocial.com/docs/Configuring_applications_and_plugins

Related Links

Applications Directory
http://www.jomsocial.com/addons.html
Released 3PD Applications and Plugins forum