I think I am doing it wrong because I use my physics info to render, so i do things like
spriteBatch.Draw(mazeBox, mazeBody.Position / 0.01f, Color.White)
But according to http://box2dxna.codeplex.com/Thread/View.aspx?ThreadId=219966 blecki in this thread.
"Your physics information is not your rendering information. Create some transforms based on the maze's position and rotation, then just go through the same data you used to create the maze and draw boxes."
So My question is what is the correct way of drawing things using Box2D. A simple example is fine. It could be a ball dropping from (10,10) to say (10,500).