You can get the latest build including new work for engine 3.00 by executing a SVN check out here:
https://newton-dynamics.googlecode.com/svn/trunk
or you can just get the latest stable version with compiled binaries and the source code to all Newton SDK but excluding the complete Qt sdk,
here: http://code.google.com/p/newton-dynamics/
To Get Qt you can just download QT fron nokia and copied to folder ../ packages/thirdParty/Qt
Or you can just get the latest Newton build from SVN, which contain the set of all Qt headers and libraries.