Great jackbond,
I tried couple of things and it worked.
For anyone else who may face this problem, I tried following,
1. first I formatted e.Result to ToArray():
void getContent_gotXMLCompleted(object sender, nav_TO.jaykONE.gotXMLCompletedEventArgs e)
{
received = e.Result.ToArray();
}
2. I updated the web reference by right clicking on service reference and choosing update.
So I am now finally able to receive array of string in silverlight 2 project.
Jay