Wow very sorry about this. I do see the bug and have fixed it and released a new version. I did use the check in google analytics to confirm the code was on the page, I don't understand how it confirmed it with the bad code.
Anyway here is a copy and paste of the code from my actual page with this code from version 1.5:
HTML Code:
<!--Google Analytics in (Forum) Begin-->
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
var pageTracker = _gat._getTracker("UA-5383701-1");
pageTracker._setSessionTimeout("3600");
pageTracker._trackPageview();
</script>
<!--Google Analytics in (Forum) End-->
As to why this bug was there, it seems in the VB 3.x version the add-slashes is necessary (as they are removed before being output) but not so in VB 4.x.