title: oscommerce postfinance integration showing unknown order/1/s
body: <p>oscommerce postfinance integration showing "unknown order/1/s"...I have already refereed <code>http://docs.openstream.ch/payment-provider/postfinance-error-messages/</code>
  But it is still not working. I have used same signature for SHA-IN , SHA-OUT and in the admin side....Is this right????</p>