Fatal error: Call to undefined method Front::run()

[eluser]InsiteFX[/eluser]

Code:

// by David of the Insiders Club
// MY_Form_validation.php - ./application/libraries
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Form_validation extends CI_Form_validation
{
public function run($module = '', $group = '')
{
  (is_object($module)) AND $this->CI = &$module;
  return parent::run($group);
}

}

// use like this
if ($this->form_validation->run($this) == FALSE)
{

}
else
{

}