I have the same problem
Im just need show the price of atributes and price reduction.
Just use this to show 2 prices in ProductController.php
$groups[$row['id_attribute_group']]['name_price'][$row['id_attribute']] = array('name' => $row['attribute_name'],'price' => Product::getPriceStatic((int)$this->product->id, false, $row['id_product_attribute'], 6, null, false, true, 1, false, null, null, null, $combination_specific_price), 'name' => $row['attribute_name'],'price2' => Product::getPriceWithoutReduct((int)$this->product->id, false, $row['id_product_attribute'], 6, null, false, true, 1, false, null, null, null, $combination_specific_price));
and product.tpl put this
{foreach from=$group.name_price key=id_attribute item=group_attribute}
<li>
<!--<input type="radio" class="attribute_radio" name="{$groupName}" value="{$id_attribute}" {if ($group.default == $id_attribute)} checked="checked"{/if} onclick="findCombination();getProductAttribute();" />-->
<input atrib='1' type="radio" class="attribute_radio" name="{$groupName}" value="{$id_attribute}" onclick="findCombination();getProductAttribute();" />
<span>{$group_attribute.name|escape:'htmlall':'UTF-8'}</span>
<span style="float:right;"><strong><!--{$currencySign|html_entity_decode:2:"UTF-8"}-->
{convertPrice price=$group_attribute.price} -
{convertPrice price=$group_attribute.price2}</strong></span>
</li>
{/foreach}
But the function getPriceWithoutReduct doesnt work