sript to embed on wordpress site

<script src="//form.jotformpro.com/jsform/52916688453973" type="text/javascript"></script>

where would i find this word press script, this is the old one, it has been updated and parents still getiin wrong thankyou after they pay.

Please read this guide for further instructions:

http://www.jotform.com/help/67-Which-Form-Embed-Code-Should-I-Use