you have a number of console errors getting logged. they might be a permissions issue, or a file not found problem.

install the developer tools for your chosen browser; look at the console; and you can see what i mean. i like to address those issues prior to moving forward on other things.

with regards to the zooming problem, i would try re-adding that image. the image the zoom is looking for is this:

http://criticalsystemsincshop.com/im...003-00_MED.jpg

and that image does not exist on your system.

good luck!