Xml debatching

i have a XML message like below

<PO xmlns=”http://envelopeprocessing“>
 <ord_req_id>5</ord_req_id>
 <cust_id>0005</cust_id>
 <date>2007-11-12</date>
 <exp_ship>2007-11-25</exp_ship>
 <Orders>
  <Order>
   <OrderID>0000050051</OrderID>
   <comment>Hurry, my lawn is going wild!</comment>
   <Items>
    <Item>
     <Part_id>872-AA</Part_id>
     <Desc>Lawnmower</Desc>
     <Qty>1</Qty>
     <Price>148.95</Price>
     <Comments>Confirm this is electric</Comments>
    </Item>
    <Item>
     <Part_id>926-AA</Part_id>
     <Desc>Baby Monitor</Desc>
     <Qty>1</Qty>
     <Price>39.98</Price>
     <Comments>Confirm this is electric</Comments>
    </Item>
   </Items>
  </Order>
  <Order>
   <OrderID>0000050052</OrderID>
   <comment>Hurry, my lawn is going wild!</comment>
   <Items>
    <Item>
     <Part_id>872-AA</Part_id>
     <Desc>Lawnmower</Desc>
     <Qty>1</Qty>
     <Price>148.95</Price>
     <Comments>Confirm this is electric</Comments>
    </Item>
    <Item>
     <Part_id>926-AA</Part_id>
     <Desc>Baby Monitor</Desc>
     <Qty>1</Qty>
     <Price>39.98</Price>
     <Comments>Confirm this is electric</Comments>
    </Item>
   </Items>
  </Order>
 </Orders>
</PO>

i want this message debatch so a particular order should be in seprate file and i want that header information should come in every order.I am using envelope schema for doing this ,the problem is that it seprates order but header information is not present in it.

Please Help!

Thanks