As no one seems to realize this. I will the one to point it out.

This mambot can be a huge security risk to the installation of a Joomla site.

Just install this mambot if you truly trust all authors of your site and they understand the security problem behind this.

Including a PHP script in a content means that the script will have access to everything Joomla has. Including passwords (changing then at least) and even Erasing the whole installation/database.

The point of having the php script inside the Joomla root dir is not a big deal. It can be easily uploaded with some HTML editors, the backend or even using a broken script from some 3rd part component.

Hi,

missed strings:

DEFINE('_SEARCH_MESSAGE', 'As palavras de busca devem ter no mínimo 3 caracteres e no máximo 20 caracteres');
DEFINE('_REG_ACTIVATE_FAILURE', 'Falha na Ativação!O sistema não foi capaz de ativar sua conta, por favor contate o administrador do site.');

Accents might not show up correctly, because I converted the files to utf-8 from iso-8859-1.