The connections where the LM317s used to be: gray wires are 'raw' DC feed to the super regulators; red wires are SR output and +Ve Kelvin sense connection; the white wires are the 0v rails and 0v Kelvin sense connections. The short copper 0v bus is tacked to the players analogue 0v rail just once, in this case at a pad used by a decoupling cap.
(who cares if its a bit blurry, it's nearly 3 times life size...)