Do I need to add something to this script to make it display the form on my page??????
<script src="//app-ab07.marketo.com/js/forms2/js/forms2.min.js"></script>
<form id="mktoForm_1028"></form>
<script>MktoForms2.loadForm("//app-ab07.marketo.com", "584-XSF-168", 1028);</script>
Is this the code you got from the Form itself?
Can you show us a test page? Are you putting this on your website or on a Marketo Page (btw, this is for your website, not a Marketo Page).
Can you use the browser's debug mode to look for errors?
Embeds fine here with exactly that code snippet.
Might be something with your actual page that's shifting the form out of view. Post your URL and we can check.