Magnifer function not working

I love this plugin, especially to show detail in art work. I seems to have a problem with the script though – I see this in the Console of Firebug:

TypeError: $(…).magny is not a function
[Break On This Error]

$(‘.magny1’).magny();

Here is the site I am working on:
http://caroline-weaver-art.com.previewdns.com/track-shoes/pick-and-roll-always-a-contender/

Can you help?

Thanks.

http://ww.wp.xz.cn/plugins/nextend-image-magnifier/