Пардон... сам уже путаюсь
Мои правки в realty_grid_thumbs.tpl
{if $grid_items.price_discount > 0}
<div class="price">
{$grid_items.price_discount|number_format:0:",":" "} {if $grid_items.currency_name != ''}{$grid_items.currency_name}{/if} ₽
{if $grid_items.price != '0'}<div class="price_discount">{$grid_items.price|number_format:0:",":" "} {if $grid_items.currency_name != ''}{$grid_items.currency_name}{/if} ₽</div>{/if}
</div>
{else}
<div class="price">{$grid_items.price|number_format:0:",":" "} {if $grid_items.currency_name != ''}{$grid_items.currency_name}{/if} ₽</div>
{/if}
Оригинальный код в реалии в realty_grid_thumbs.tpl
{if $grid_items.price_discount > 0}
<div class="price">
{$grid_items.price_discount|number_format:0:",":" "} {if $grid_items.currency_name != ''}{$grid_items.currency_name}{/if}
<div class="price_discount">{$grid_items.price|number_format:0:",":" "} {if $grid_items.currency_name != ''}{$grid_items.currency_name}{/if}</div>
</div>
{else}
<div class="price">{$grid_items.price|number_format:0:",":" "} {if $grid_items.currency_name != ''}{$grid_items.currency_name}{/if}</div>
{/if}
Исправляюсь Дмитрий!