Better way -- create file admin/includes/boxes/extra_boxes/products_with_attributes_stock_catalog_dhtml.php with this code:
Code:<?php
$za_contents[] = array('text' => BOX_CATALOG_PRODUCTS_WITH_ATTRIBUTES_STOCK, 'link' => zen_href_link(FILENAME_PRODUCTS_WITH_ATTRIBUTES_STOCK, '', 'NONSSL'));
?>