Visual Debugger Enable

How can i enable visual debugger on 1.5.5 version. Someone help me??? I can change sdk files. Which need i file changed? How can i do?

I once wrote a little tutorial series for BloodyMess which one part covering the VisualDebugger. You might want to read it:

http://www.ogre3d.org/tikiwiki/BloodyMess+Tutorial+3