it is a lot like the setup you already have, the difference is that the tail wheel itself is under the rudder. it is still mounted on the fuselage but the wheel extends out behind the fuse and is attached to the rudder via springs one on each side of the rudder. When the rudder is moved it extends one spring and the one on the other side is compressed. the advantage is that
A) with the tail wheel extending backwards it will tend to track straighter. think of the shape of castering wheels on a shopping cart, when you push the cart they will sort of trail behind. Also it provides a sort of shock absorbing effect thus taking stress off of the attach point.

B) the springs also greatly reduce the stress on your rudder and hinges as your bouncing along the ground.

all that said though, minn is right that as long as your wheel and rudder are straight with each other then all is well. Our friend from Sweden is also right that there is a better way to do it, though yours is functional it adds more stress on the plane than needs to be.