Given a magento order object how can I find the tracking number associated with that order?
$order = Mage::getModel('sales/order')->loadByIncrementId(100000064);
$shipmentCollection = Mage::getResourceModel('sales/order_shipment_collection')
->setOrderFilter($order)
->load();
foreach ($shipmentCollection as $shipment){
// This will give me the shipment IncrementId, but not the actual tracking information.
$shipment->getData();
}