[PhilJ]

Torben, edit...

skin/smart_template/modules/Detailed_Product_Images/product_images.tpl

Replace...

<img src="{if $i.image_url}{$i.image_url|amp}{else}{$xcart_web_dir}/image.php?id={$i.imageid}&amp;type=D{/if}" alt="{$i.alt|escape}"{if $smarty.foreach.images.last} class="last"{/if} />

With...

<div align="center">
        <img src="{if $i.image_url}{$i.image_url|amp}{else}{$xcart_web_dir}/image.php?id={$i.imageid}&amp;type=D{/if}" alt="{$i.alt|escape}"{if $smarty.foreach.images.last} class="last"{/if} />
</div>