I should demote myself back to newbie from member. I see the file, products.tpl. I can't find where to apply the code you suggested. Does it go here somewhere?
<td class="PListImgBox">
<div class="PListImgBox">
<a href="product.php?productid={$products[product].productid}&cat={$cat}&page={$navigation_p age}{if $featured eq 'Y'}&featured{/if}">{include file="product_thumbnail.tpl" productid=$products[product].productid image_x=$config.Appearance.thumbnail_width product=$products[product].product tmbn_url=$products[product].tmbn_url}</a>
Please hold my hand a little more.