thanks countrycharm for trying to help with my 'tpl_search_header' issue, but I'm still unable to display the top-left search box.
Could anyone please tell me which directories I should have 'tpl_search_header.php' - currently it is in: (WHERE cherry_zen is CUSTOM folder)

includes/templates/cherry_zen/sideboxes/
includes/templates/template_default/sideboxes/