I am using zencart were i need to print the category and subcategory is same page. Right now i having category list in a page and if i click that it show the corresponding sub categories in another page. I found the code is in category_row.php which resides in module folder. That category_row.php use tpl_list_box_content.php for layout, which resides in include/templates/template_default/common Can any one please help.
I guess what you need to do for each category is run a DB query and fetch the subcategories listed underneath it.