Problem with Javascript zooming library

[TheBnl]

Hey, I have some problems with a javascript library (http://janne.aukia.com/zoomooz/) i'm using for my website (http://bram-de-leeuw.nl). The problem i'm having is with the zoom function, i added this function to the articles posted on the site but when i click on them it doesn't zoom and in the google chrome console it returns an error saying Uncaught TypeError: Object #<Object> has no method 'initialize' in the jquery.zoomooz.js:294 . But i just followed the examples i got with the library which work fine.. I don't know what to do or were to start fixing this. Another thing i would like to work is a scale function what will scale articles down, the oldest post are the smallest and the newer posts are normal size so there will be a sort of depth, i added the attachment as an example. The lines connecting the posts are connected to the category's of the posts, i don't know were to start here either so if you got any leeds please share! many thanks in advance!