This article is on adding item photos to summary section.

If you need to display product image thumbnail in your total block html then you can do so:

• edit the file app/design/frontend/base/default/template/onestepcheckout/summary.phtml or the file in your theme folder
• add following

<img src="<?php echo $this->helper('catalog/image')->init($item->getProduct(), 'small_image')->resize(163, 100);?>" />

to the place where you need your image to be displayed

for configurable products you can use

• <img src="<?php echo $this->helper('catalog/image')->init($item->getOptionByCode('simpleproduct')->getProduct(), 'smallimage')->resize(163, 100);?>" />

or :

        <?php

        if($item->getProductTypeId="configurable"){

            $ChildProduct=Mage::getModel('catalog/product')->loadByAttribute('sku',$item->getSku());

            $found=Mage::helper('catalog/image')->init($ChildProduct, 'thumbnail');

        }

        ?>

<img  src='<?php echo Mage::helper('catalog/image')->init($ChildProduct, 'thumbnail')->resize(163, 100);?>'/>