Inside products_t.tpl, I did this;
{foreach from=$row item=product name=products}
{if $product}
<td{interline name=products additional_class="product-cell"} style="width: {$cell_width}%;">
<script type="text/javascript">
//<![CDATA[
products_data[{$product.productid}] = {ldelim}{rdelim};
//]]>
</script>
<a href="{$product.alt_url|default:$product.page_url| amp}" class="product-title">{$product.productcode|escape}</a>
</td>
{/if}
{/foreach}
and, it's not seeming to show the product code for some reason?