Which to use, the plugin or the module?
If you use the plugin you have to place it at the end of the plugin order in the Plug-in Manager.
If you use the module you have to place it in the module position that loads last among the other module positions. Also place it at the end of the module order in the Module Manager.
Notice: Don't forget to unzip the downloaded file. In there you will find one plugin and one module, both working for Joomla 2.5.x & 3.x.
- In the Joomla control panel select: Extensions > Install/Uninstall.
- Then click Upload & Install to upload the file and complete the installation.