Got every other top work! Expect for the BUTTON_ADD_SELECTED_ALT issue, I dont have tpl_modules_product_listing.php in MY_TEMPLATE but i do have it in default_template. Any idea?? I have already try add the tpl_modules_product_listing.php in MY_TEMPLATE and still getting the same error.

Also for my last problem, I am using 1.3.6, Do i need to upgrade to 1.3.7 to get this work?