How do I set up a cronjob to run scheduled jobs?
you should add directly after cron.php

?name=username&amp;pass=password&amp;key=site-key


so it will be in your case:

/usr/local/php53/bin/php-cli /home/ashguild/public_html/home/administrator/components/com_civicrm/civicrm/bin/cron.php?name=username&amp;pass=password&amp;key=site-key


The site-key is generated during install and can be found in civicrm.settings.php.

For your joomla you should be able to find it in
/home/ashguild/public_html/home/administrator/components/com_civicrm/civicrm.settings.php