save an xslt applied xml file in PDA application (.net compact framework)

Hi
please help me for windows mobile application…
I am using stylesheet on an xml file and load this xml file into PDA application made in C#(.net 2.0 compact framework) in webbrowser control.
Now I want to save this xml file with changed node value with same or diffent file name.
Javascript for document.write is not working in PDA.
Scripting.FileSystemObject also not working.
WebBrowser control does not have Document property.
So How I can solve this issue.

Thanks and Regards,
Pankaj Kumar