Using Isotope with Wordpress

Using Isotope with Wordpress

Hello there,

I'm trying to get isotope up and running on my Wordpress site. 

Isotope works fine on its own: http://bit.ly/hklkK1

But for some reason, which I can't quite fathom, it doesn't work in Wordpress: http://bit.ly/hG5yTG

Does anyone have any idea what I'm doing wrong?

Thanks all,

Russ