I had the same problem as Robert. I was able to fix "The No Product Found" error by changing the following line in:
catalog/includes/modules/product_listing.php and catalog/includes/modules/new_products.php
Original Line in each file:
$p_details = '<a href="' . tep_href_link('product_info.php?products_id='.$p_id) . '">'.tep_image_button('button_details.gif', '', ' class="btn1"').'</a>';
Fixed Line in each file:
$p_details = '<a href="'.tep_href_link("product_info.php","products_id=".$p_id).'">'.tep_image_button('button_details.gif', '', ' class="btn1"').'</a>';
This worked for me. I hope it works for you. Great Contribution.
Thanks