Assuming you are talking about a shipping charge you need to find this line of code on your cart pages:
<?php
//WA eCart Merchandizing Show Start
//ecart="eCart1"
if ($eCart1->GetDiscounts() > 0 || $eCart1->GetCharges() > 0 || $eCart1->GetShipping() > 0 || $eCart1->GetTax() > 0) {
?>
and modify it like so:
<?php
//WA eCart Merchandizing Show Start
//ecart="eCart1"
if ($eCart1->GetDiscounts() > 0 || $eCart1->GetCharges() > 0 || $eCart1->GetShipping() >= 0 || $eCart1->GetTax() > 0) {
?>
then find this line:
<?php
//WA eCart Merchandizing Show Start
//ecart="eCart1"
if ($eCart1->GetShipping() > 0) {
?>
and modify it like so:
<?php
//WA eCart Merchandizing Show Start
//ecart="eCart1"
if ($eCart1->GetShipping() >= 0) {
?>
now in the table cell that contains the shipping cost you could add code like this if you wanted to display something other than 0.00
<?php if ($eCart1->GetShipping() > 0) { echo WA_eCart_DisplayMoney($eCart1, $eCart1->GetShipping()); } else { echo "FREE"; } ?>