– In listing page, to “Be the first to review this product” replace by … You can go to file: app/design/frontend/default/sns_nova/template/catalog/product/list.phtml find and replace the bellow code:

<?php echo $this->getReviewsSummaryHtml($_product, false, true)?>

By your code
– ‘with the Buy 4 for £.. each and save …% tier from the product page…’ Sorry i dont really understand your question. If possible please give me a screenshot describe your desire. So, i will have a closer look at your issue

Best Regards!