Sorry, didn't even see the xml file at first.
Ok the XML file was for a Joomla 1.5 template and thus won't work.
I have updated it so that it will now work for Joomla 3
http://pastebin.com/1Dv6g6ip
<?xml version="1.0" encoding="utf-8"?>
<extension version="3.0" type="template" method="upgrade">
<name>themza_j15_11</name>
<version>1.0.1</version>
<creationDate>2008-10-20</creationDate>
<author>Themza Team</author>
<authorEmail>[email protected]</authorEmail>
<authorUrl>http://www.themza.com</authorUrl>
<copyright>ThemZa 2008</copyright>
<license>ThemZa TOS</license>
<description>Computer Society</description>
<files>
<filename>index.php</filename>
<filename>index.html</filename>
<filename>templateDetails.xml</filename>
<filename>template_thumbnail.png</filename>
<filename>params.ini</filename>
<filename>favicon.ico</filename>
<filename>component.php</filename>
<folder>css</folder>
<folder>html</folder>
<folder>images</folder>
</files>
<positions>
<position>breadcrumb</position>
<position>left</position>
<position>right</position>
<position>top</position>
<position>user1</position>
<position>user2</position>
<position>user3</position>
<position>user4</position>
<position>debug</position>
<position>syndicate</position>
</positions>
<config>
<fields name="params">
<fieldset name="basic">
<field name="pageAlignment" type="radio" default="center" label="Page Alignment" description="Page Alignment">
<option value="left">left</option>
<option value="center">center</option>
<option value="right">right</option>
</field>
<field type="spacer" />
<field name="colorVariation" type="list" default="red" label="Color Variation" description="Color variation to use">
<option value="red">Red</option>
<option value="blue">Blue</option>
<option value="green">Green</option>
<option value="orange">Orange</option>
</field>
<field type="spacer" />
<field name="hideLogo" type="radio" default="0" label="Hide Logo" description="Hide the logo.">
<option value="0">No</option>
<option value="1">Yes</option>
</field>
<field type="spacer" />
<field name="hideBannerArea" type="radio" default="0" label="Hide Banner Area" description="Hide the banner section under the menu.">
<option value="0">No</option>
<option value="1">Yes</option>
</field>
<field type="spacer" />
<field name="dateDisplay" type="radio" default="1" label="Date Display" description="Display the date in the top right corner of the template.">
<option value="0">No</option>
<option value="1">Yes</option>
</field>
</fieldset>
</fields>
</config>
</extension>
Hope this helps
templateDetails.xml– Mutualize