[TYPO3] Why would this simple template not work on 3.6?

[Ryan Holdren]

Any ideas why this wouldn't work on typo 3.6? I wrote / tested it on
typo 3.8 and it works for me, no problem, but apparently it just
displays:

">

... Instead of any content. Any ideas?

Thanks in advance,
- Ryan

The template:

<div id="shell">
	<div id="ubc-header">
		<h1><a href="http://www.ubc.ca/">University of British Columbia</a></h1>
		<ul id="ubc-navigation">
			<li><a href="http://www.publicaffairs.ubc.ca/ubcnews/"
title="news">News</a></li>
			<li><a href="http://www.liveat.ubc.ca/" title="Events">Events</a></li>
			<li><a href="http://www.ubc.ca/directory/"
title="Directories">Directories</a></li>
			<li><a href="http://www.ubc.ca/search/" title="Search UBC">Search
UBC</a></li>
			<li><a href="http://my.ubc.ca/" title="myUBC Login">myUBC Login</a></li>
		</ul>
	</div>
	<div id="social-work-header">
		<h2><a href="http://www.socialwork.ubc.ca/"><span>School of Social
Work</span></a></h2>
		<!-- ###NAVIGATION### ###NAVIGATION### -->
	</div>
	<form id="search" method="POST" action="index.php?id=11529">
		<p>
			<input type="hidden" name="scols"
value="pages.title-subtitle-keywords-description:tt_content.header" />
			<input type="hidden" name="stype" value="L0" />
			<input class="text" type="text" name="sword" value="Search" />
			<input class="submit" type="submit" value="Go" />
		</p>
	</form>
	<div id="content">
		<h3><!-- ###PAGE_TITLE### ###PAGE_TITLE### --></h3>
		<!-- ###CONTENT### ###CONTENT### -->
	</div>
	<div id="footer">
		<p class="copyright">&copy; <a
href="http://www.ubc.ca/site/legal.html" title="Legal Information
&amp; Terms of Use">Copyright</a> The University of British Columbia,
all rights reserved.</p>
		<p class="referance">Designed by <a
href="mailto:blackbytes at gmail.com" title="Designer&#8217;s email
address" >Ryan Holdren</a></p>
	</div>
</div>