An easier way would be to use this:
product.tpl
Code:
{include file="dialog.tpl" title="<em>`$product.producttitle`</em>" content=$smarty.capture.dialog extra='width="100%"'}
products.tpl
Code:
<a href="product.php?productid={$products[product].productid}&cat={$cat}&page={$navigation_page}{if $featured eq 'Y'}&featured{/if}"><font class="ProductTitle"><em>{$products[product].product}</em></font></a>
Or even better (for the products.tpl file), just change the ProductTitle class in skin1.css to this:
Code:
.ProductTitle {
COLOR: #000000;
FONT-WEIGHT: bold;
FONT-SIZE: 12px;
font-style: italic;
}