It would be tpl_modules_product_listing.php I guess...
Here is the code:
<?php
/**
* Module Template
*
* @package templateSystem
* @copyright Copyright 2003-2005 Zen Cart Development Team
* @copyright Portions Copyright 2003 osCommerce
* @license <http://www.zen-cart.com/license/2_0.txt> GNU Public License V2.0
* @version $Id: tpl_modules_product_listing.php 3241 2006-03-22 04:27:27Z ajeh $
* UPDATED TO WORK WITH COLUMNAR PRODUCT LISTING 04/04/2006
*/
include(DIR_WS_MODULES . zen_get_module_directory(FILENAME_PRODUCT_LISTING));
if((!isset($is_index_listing) || $is_index_listing) && $listing_split->number_of_rows > 0) {
if (isset($is_index_listing) && $is_index_listing){
echo $index_title;
$index_title = '';
}
?>
<div class="productListing">
<?php
// only show when there is something to submit and enabled
if ($show_top_submit_button == true) {
?>
<div class="buttonRow forward"><?php echo zen_image_submit(BUTTON_IMAGE_ADD_PRODUCTS_TO_CART, BUTTON_ADD_PRODUCTS_TO_CART_ALT, 'class="submit1" name="submit1"'); ?></div>
<br class="clearBoth" />
<?php
} // show top submit
?>
<?php if ((!isset($is_index_listing) || !$is_index_listing) && ($listing_split->number_of_rows > 0) && ( (PREV_NEXT_BAR_LOCATION == '1') || (PREV_NEXT_BAR_LOCATION == '3') ) ) {
?>
<div class="productsListingTopNumber" class="navSplitPagesResult back"><?php echo $listing_split->display_count(TEXT_DISPLAY_NUMBER_OF_PRODUCTS); ?></div>
<div class="productsListingListingTopLinks navSplitPagesLinks forward"><?php echo TEXT_RESULT_PAGE . ' ' . $listing_split->display_links(MAX_DISPLAY_PAGE_LINKS, zen_get_all_get_params(array('page', 'info', 'x', 'y', 'main_page'))); ?></div>
<br class="clearBoth" />
<?php
}
?>
<?php
/**
* load the list_box_content template to display the products
*/
if (PRODUCT_LISTING_LAYOUT_STYLE == 'columns') {
require($template->get_template_dir('tpl_columnar_display.php',DIR_WS_TEMPLATE, $current_page_base,'common'). '/tpl_columnar_display.php');
} else {// (PRODUCT_LISTING_LAYOUT_STYLE == 'rows')
require($template->get_template_dir('tpl_tabular_display.php',DIR_WS_TEMPLATE, $current_page_base,'common'). '/tpl_tabular_display.php');
}
?>
<?php if ((!isset($is_index_listing) || !$is_index_listing) && ($listing_split->number_of_rows > 0) && ((PREV_NEXT_BAR_LOCATION == '2') || (PREV_NEXT_BAR_LOCATION == '3')) ) {
?>
<div class="productsListingBottomNumber navSplitPagesResult back"><?php echo $listing_split->display_count(TEXT_DISPLAY_NUMBER_OF_PRODUCTS); ?></div>
<div class="productsListingListingBottomLinks navSplitPagesLinks forward"><?php echo TEXT_RESULT_PAGE . ' ' . $listing_split->display_links(MAX_DISPLAY_PAGE_LINKS, zen_get_all_get_params(array('page', 'info', 'x', 'y'))); ?></div>
<br class="clearBoth" />
<?php
}
?>