In the instructions it says:
Make sure your body tag in /includes/templates/[your_template]/common/tpl_main_page.php
includes this code
But the template I'm using doesn't have that file. All I've got in that directory is:
html_header.php,
tpl_box_default_left.php,
tpl_box_default_right.php,
tpl_columnar_display.php,
tpl_drop_menu.php,
tpl_header.php,
tpl_footer.php.

Which should I add the code to?