Below mentioned is my XML,
If your target devices support SAX from JSR 172, you should go with this parser. It will reduce your app's final jar size (no libs imported). There is a good sample at http://www.developer.nokia.com/Community/Wiki/JSR_172:_XML_Parsing_Example It actually unmarshalls the XML into Java objects.
After you feel confident you may try my generic approach to unmarshalling in Java ME at http://smallandadaptive.blogspot.com.br/2010/11/xml-data-binding.html
You can use http://kxml.sourceforge.net/ to parse XML messages.
Observation
The message above looks like a Soap response message. The suppose to be parse for you by your soap client?