Our partner is expecting something like this: 
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Body>
<RateRequest xmlns="http://www.whatever.org/" TimeStamp="2004-05-10T13:30:33.877Z"><POS><Source><UniqueId Type="IDNUM" Id="12345"/></Source></POS></RateRequest>
</soapenv:Body></soapenv:Envelope>


When I use axis I do the following: 
Call     call    = (Call) service.createCall(); 
call.setTargetEndpointAddress(new java.net.URL("http://www.mytestserver.com/servlet/RequestTest"));
RPCElement element=new RPCElement("RateRequest"); 
element.setNamespaceURI("http://www.whatever.org/");
org.apache.axis.message.Text textElement=new Text(xmlFromDom4j); 
textElement.setParentElement(element);
String ret = (String) call.invoke(element);

The 'xmlFromDom4j' I have is not utilized at all...I expected it to be a child of the request node.  What am I doing wrong?