[Plugin: FancyBox for WordPress] fancybox for wordpress dont work

Hello together,

I try to use fancybox on utube links at this site:

http://jlf-promotion.com/links/

(video-link)
I have installed the “fancybox for wordpress” plugin.
The header loads the jevescripts, but it doesnt work automatically, and it doesnt work with class “fancybox-utube”…can somebody help me???

Thanks

http://ww.wp.xz.cn/extend/plugins/fancybox-for-wordpress/