show "free" if no price to be paid

fulcrm_shoppingcart_transaction_complete.tpl.php

@@ -22,11 +22,16 @@
                 Total
             </th>
             <th class="text-right">
+                <?php $any = false; ?>
                 <?php if ( count( $transaction[ '_price' ][ 'total' ] ) ): ?>
                     <?php foreach ( $transaction[ '_price' ][ 'total' ] as $currency => $price ): ?>
-                        <div><?php print $price[ 'format_total' ]; ?></div>
+                        <?php if ( $price[ 'gross' ] ): ?>
+                            <?php $any = true; ?>
+                            <div><?php print $price[ 'format_gross' ]; ?></div>
+                        <?php endif; ?>
                     <?php endforeach; ?>
-                <?php else: ?>
+                <?php endif; ?>
+                <?php if ( !$any ): ?>
                     <em>free</em>
                 <?php endif; ?>
             </th>