The mod looks promising, but I cannot get it to work at all. I copied all the files and in admin panel it shows the option to show all subcategories too, but when I put this in my template's header.tpl:

PHP Code:
require($template->get_template_dir('tpl_categories.php',DIR_WS_TEMPLATE, $current_page_base,'sideboxes'). '/tpl_categories.php'); 
it just gives these errors error:


Notice: Undefined variable: box_id in /home/XXX/XXX/templates/XXX/sideboxes/tpl_categories.php on line 20


and:

Notice: Undefined variable: box_categories_array in /home/koulu116/public_html/includes/templates/sarianna/sideboxes/tpl_categories.php on line 22

Any suggestions?