Free extensions for Joomla!

http://northernliteracy.ca/index.php?option=com_xmap&view=xml&tmpl=component&id=1

I get the following error:

This page contains the following errors:

error on line 430 at column 66: EntityRef: expecting ';'
Below is a rendering of the page up to the first error.

Using Joomla 2.5.7 php 5.2.17 (and not able to upgrade for now)