@Doug, in /skin/reboot/main/product_details.tpl
Replace...
Code:
{include file="main/image_area.tpl"}
With...
Code:
{if $config.Reboot.reboot_products_thumbnail_swap ne "Y"}
{include file="main/image_area.tpl"}
{else}
{include file="main/image_area_swap.tpl"}
{/if}
Then, upload the following from the v4.7.12.5 zip file...
/skin/reboot/product_thumbnail.tpl
/skin/reboot/main/image_area.tpl
/skin/reboot/main/image_area_swap.tpl
Any probs, let me know.