: Hi again,
: i know that i need to use a DocumentNavigator class to navigate in XML document, i need to use MoveToChild/MoveToParent there the problem is that i don't know how to load this DocumentNavigator.
Well, there are two defacto standards for parsing XML files, DOM and SAX. In the case of DOM, the library will create a tree of nodes for you and you could just wrap that in your navigation class. For SAX, you would have to create Node classes yourself and build the tree yourself as the SAX parser describes the XML to you.
$ select * from users where clue > 0
no rows returned