Hi Friends,
Pay Pal
Pay Pal integration is made using a Webform that transfers the customer to the PayPal site. This payment method allows automatic Order Status Updates. There's a file in /administrator/components/com_virtueMart/ which is called notify.php. You will need to enter the appropriate URL (web address) for the script file in Pay Pal control panel. When a customer finishes the Payment, the Pay Pal server connects to this script on your server. When the transaction AND the payment have been successful, the order status is automatically updated to the status you have set in the Pay Pal configuration form.
pls see this detail.
Mod edit: links removed.