title: get qty of products in an order with several products
body: <p>Hi i would like to know how to get the qty_ordered of a specific product in an order with several products.</p>
  
  <p>i have tried these</p>
  
  <pre><code>     $orders = Mage::getModel('sales/order')-&gt;getCollection()-&gt;
          addAttributeToSelect('shipping_description')-&gt;
          addAttributeToSelect('increment_id')-&gt;
          addAttributeToSelect('base_grand_total')-&gt;
          addAttributeToSelect('total_qty_ordered')-&gt;
          addAttributeToSelect('shipping_address_id')-&gt;
          addAttributeToSelect('billing_address_id')-&gt;
          addAttributeToSelect('created_at')-&gt;
          addAttributeToSelect('shipping_incl_tax')-&gt;
          addAttributeToFilter('status', 'pending');
  </code></pre>
  
  <p>but    addAttributeToSelect('total_qty_ordered')-> which total? which product?</p>