Hi,

There are 2 lines. The code you need to paste is

<?php $sku = Mage::getModel(‘catalog/product’)->load($_product->getId())->getSku(); ?>
<p class="sku-product"><?php echo $sku; ?></p>

And the place that you should paste is right before the code
<?php echo $this->getReviewsSummaryHtml($_product, false, true)?>
on the file app\design\frontend\default\sns_toronto\template\catalog\product\view.phtml

Regards,