[geckoday]

You've mixed products.tpl, product.tpl and recommends.tpl variables. In recommends.tpl the product information for the recommended products list is in $recommends, not in $products or $product. To refer to the current product in the loop you should be using $recommends[num]. You need to change several things:

$products[product].product to $recommends[num].product
$products[product].tmbn_url to $recommends[num].tmbn_url
$products[product].taxed_price to $recommends[num].taxed_price

And finally the one which will actually fix the problem you are asking about:
$product.taxed_price to $recommends[num].list_price