Before you follow this recipe you should have completed the previous recipe Installing Piwik analytics. Piwik analytics tracks as many websites as you like. This recipe simply enables it on a specific Joomla! website. Repeat this recipe for every site you wish to track.
Visit http://www.nfrtest.de/en/downloads-en/category/1-plugins. Choose the appropriate download for your version of Joomla!. This guide, like most in this book is using Joomla! 2.5.x, so we download the file
nfrpiwik251.zip. Keep it on your desktop and get started.
Setting up Piwik for Joomla! was nice and quick. now we can start gathering data in our Piwik database.