Preserving MailChimp AJAX

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I'm adding a MailChimp list subscription form to my site, and removed the jquery and jquery.form tags, but also had to remove the last javascript tag that handles the AJAX form submission/response. Example:
<script type="text/javascript" src="http://account.us1.list-manage.com/subscribe/xs-js?u=blahblah&id=blahblah"></script>

(that code sample is displaying really weird. ignore the php and repitition. it's supposed to just be a normal script tag with type and src.)
That script seemed to interfere with c5's AJAX, for example when you exit edit mode the options for discard, preview, and publish wouldn't show up.

It would be infinitely better to preserve the AJAX behavior of MailChimp's form, though. Has anyone traveled this road before?

Benji