This plug-in do nothing in J 2.5.3. It is a garbage. I don't like to give such low rating, because the author/s have worked to make this plug-in. Unfortunately, it doesn't work at all. Furthermore, their page is written in Cyrillic - I assume this plug-in is from Ukraine (my flagfox suggestion). Maybe in Joomla 1.5 this plug-in works... I don't know.