For me also not working. (I have both versions. )
For version 1.7. (here is example for cart-detailed-product-line.tpl)
<div class="col-md-6 col-xs-2 price">
<span class="product-price">
<strong>
{if !empty($product.is_gift)}
<span class="gift">{l s='Gift' d='Shop.Theme.Checkout'}</span>
{else}
{$product.total}
{hook h='displayMultiPrice' price=$product.total_wt}
{/if}
---------------------------
Or for version 1.6 (here is example for shopping-cart-product-line.tpl)
{if !$priceDisplay}
<li class="price{if isset($product.is_discounted) && $product.is_discounted && isset($product.reduction_applies) && $product.reduction_applies} special-price{/if}">{convertPrice price=$product.price_wt}</li>
<br/>{hook h='displayMultiPrice' price=$product.price_wt}
{else}
----------------------------
What are we doing wrong?
Thanks!