Mootools conflict on joomla page

I had posted this once before but couldn’t really get a solution so i’m posting again to see what luck i’ll have. Thanks everyone.

I have two main components running on this page below.

[code]
http://vtpr.net/asociacion-relacionistas/index.php?option=com_sobipro&sid=54&task=list.alpha.a&Itemid=23[/code]

Sobi directory and gavick photoslide. The problem is that the photoslideshow is not loading only on the page witht he directory. I did a little investaging and got an error console for firefox and it showing this error:

[code]
Error: Fx.Opacity is not a constructor
Source File: http://vtpr.net/asociacion-relacionistas/modules/mod_gk_news_image_1/js/engine_compress.js
Line: 1[/code]

I have VERY VERY limited knowledge of javascript. Any and all help is super appreciated. Thanks in advance

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