Setting up reCaptcha in your Joomla installation
One of the features added in Joomla! 2.5 version in reCaptcha in core. If you have installed Joomla! in 2.5 (or Joomla! 3.2) version reCaptcha plugin should be visible in Plugin Manger view, but before you start configuring plugin settings you have to get captcha keys.
