how to read specific xml node/element using c++ parser

There's also TinyXML[^], an easy and lightweight C++ library to parse XML.

An alternative: XMlLite
->[^]

What you ask for is called parsing (sometimes reading) XML file. If you want to study first, then consult with Wikipedia and MSDN (DOM or SAX). If you need an implementation (code to use in your application) always search Codeproject.com (for something like "parsing XML in C/C++" in this case).