title: captcha in rails 1.2.6
body: <p>I am working with a very old rails application (v1.2.6) and need to implement a captcha on the site. Does anyone know what approach I can take to do this? </p>
  
  <p><strong>I have tried:</strong><br /></p>
  
  <ul>
  <li>Searching for rails plugins that support v1.2.6 (found nothing)</li>
  <li>Setting up <code><a href="https://github.com/superp/simple-captcha" rel="nofollow">simple-captcha</a></code> plugin (but only works on
  rails > 3)</li>
  </ul>
  
  <p>Any help would be greatly appreciated. Thanks :)</p>