Need help integrating custom code for a Form

[Gator (Eugene Grant-Sinclair)]

I am using a script from Dynamic Drive which I like very much but I am
unable to get it to function the way I want.

The on Webflow page is:
http://mark-tinder-appraisals.webflow.io/contact-appraiser

https://preview.webflow.com/preview/mark-tinder-appraisals?preview=57c63325b6fa7285181f8a68fd701102

The original version can be found on:
http://www.dynamicdrive.com/dynamicindex16/formwizard.htm

The code I am using is as follows:

Header;
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>



<script src="http://marktinderappraisals.com/formwizard.js"
type="text/javascript">

/***********************************************
* jQuery Form to Form Wizard- (c) Dynamic Drive (www.dynamicdrive.com)
* Please keep this notice intact
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/

</script>

<script type="text/javascript">

var myform=new formtowizard({
formid: 'feedbackform',
persistsection: true,
revealfx: ['slide', 500]
})

</script>

The body has the following:

<form id="feedbackform">

<fieldset class="sectionwrap">
<legend>Basic Information</legend>
Name:<br /> <input id="username" type="text" size="35" /><br /><br />
Regarding: <select name="Topic">
<option value="estate-appraisals"> Estate Appraisals </option>
<option value="tax-appeal">Tax Appeal</option>
<option value="mortgage-financing"> Mortgage Financing </option>
<option value="open-space-acquisition">Open Space Acquisition</option>
<option value="Farmland-preservation"> Farmland Preservation </option>
<option value="fariance-application"> Variance Application </option>
<option value="marital-assets "> Marital Assets </option>
<option value="other">Other</option>

</select>

</fieldset>
<fieldset class="sectionwrap">
<legend>Your Contact Information</legend>
<br />
Phone :<br /> <input id="phone" type="text" size="35" /><br />
Cell :<br /> <input id="cell" type="text" size="35" /><br />
Address :<br /> <input id="addr1" type="text" size="35" /><br />
City :<br /> <input id="city" type="text" size="35" /><br />
State :<br /> <input id="state" type="text" size="35" /><br />
Zipcode :<br /> <input id="zip" type="text" size="35" /><br />
Email :<br /> <input id="email" type="text" size="35" /><br /><br />

Preferred Contact Methode: <select name="Topic">
<option value="cell">Cell</option>
<option value="phone">Phone</option>
<option value="email">Email</option>
<option value="snail-mail">Snail Mail</option>

</select>

</fieldset>
<br />
<fieldset class="sectionwrap">
<legend>Message</legend><br /> <textarea id="feedback"
style="width:350px;height:150px"></textarea><br />
<input type="submit" />
</fieldset>
<form action="mailto;mark@marktinderappraisals.com" method="post"
form_format="html">
<input type="hidden" name="subject" value="WebsiteContact">
<input type="hidden" name="redirect" value="thank-you.html">
</form>


Please advise, thanks