jQuery-switchButton

I am using this script: code.

I am trying to get the switch button to show up like the example (view examples here), but for some reason it isn't working and I don't know why.

jQuery I'm using:

$("input#switch").switchButton({
   labels_placement: "right"
});

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HTML I'm Using:

<div class="switchButton">
	<input id="switch" type="checkbox" name="anonymous" value="1" checked>
</div>

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The URL It's supposed to work on:  http://girlzunderground.com/rate-pics.php  (the code in question is ajaxed to the page, but you can see it with Chrome's "inspect element" feature.)

The checkbox on this page is in the upper left hand corner of the box with the stars in it.  Right now it's just a plain checkbox and I would like to have it be the switch button like on the example I provided.

Thanks for the help!