use zero amount as trial

products.tpl

@@ -171,7 +171,7 @@
 							    <tr style="height:60px;">
 								<td> <!-- Price -->
 									{if $product.bid}
-								    {elseif $product.paytype eq "free"}
+								    {elseif $product.pricing.minprice.price->toNumeric() == 0.00}
 									<mark style="font-size:160%;background-color:#2368AD;">{$LANG.orderfree}</mark>
 								    {elseif $product.paytype eq "onetime"}
 									<span>{$product.pricing.onetime} </span>{$LANG.orderpaymenttermonetime}