bash-2.03$ tpage template.html 
undef error - 
junk after document element at line 18, column 0, byte 221:
</section>
</site>
<site language="fr">
^
<section name="section 1">
<intro>
 at /usr/local/lib/site_perl/i386-linux/XML/Parser.pm line 185

##</code><code>##

<?xml version="1.0"?>

<site language="en">
<section name="section 1">
<intro>
My darling
</intro>
<maintext>
I love you
</maintext>
</section>
<section name="section 2">
<maintext>
The Bla
</maintext>
</section>
</site>
<site language="fr">
<section name="section 1">
<intro>
mon amour
</intro>
<maintext>
Je t'aime
</maintext>
</section>
<section name="section 2">
<maintext>
bla
</maintext>
</section>
</site>

##</code><code>##

[% USE xpath = XML.XPath(file => "./test.xml") %]
[% FOREACH site = xpath.findnodes('site') %]
<h1>[% site.getAttribute('language') %]</h1>
	[% FOREACH section = xpath.findnodes('site/section') %]
		<h2>[% section.getAttribute('name') %]</h2>
		[% maintext = section.findnodes('maintext') %]
		[% maintext.string_value %]
	[% END %]

[% END %]