Javascript Uncaught ReferenceError: Class is not defined

I am trying to implement a moving photo slider that is no jQuery , it uses moo tools

I want a slider like this guy http://mahusay-fbt.blogspot.com/

So I got that piece of code that is specifically designed for blogger here bit.ly/chXo9Q

I implemented it on my dummy blog and it ain't working

This is the error i get

Uncaught SyntaxError: Unexpected number
hacktheplanets.blogspot.com/:1380 Uncaught Referenc开发者_开发问答eError: Class is not defined

hacktheplanets.blogspot.com/:1657 Uncaught TypeError: Object [object DOMWindow] has no method 'addEvent' 

I have no idea where I went wrong and I need help

Your packed version of mootools is not quite right. You should replace it.