Find the set_hudmessage for the hud you want to modify its position and modify the 4th and 5th parameters.
4th parameter is horizontal(X) position on screen. 0.0 = all the way to the left. 1.0 = all the way to the right.
5th parameter is vertical(Y) position on screen. 0.0 = all the way up. 1.0 = all the way down.
-1.0 = center(works for both horizontal and vertical).
Play with the values until you find your desired position.