The VH Audio Flavor 4 cord, if constructed with Chris' purpose-built wire, does in fact consist of four conductors. The star-quad configuration consists of connecting the two conductors opposite (not next to) each other for each polarity. For example, if the four conductors corresponded to 3, 6, 9, and 12 o'clock, then the 12 and 6 o'clock conductors would be connected together for one polarity (load or neutral) and the 3 and 9 o'clock conductors would be connected together for the other polarity.
The purpose of the star quad geometry is to reduce inductance - a good thing for power cords and speaker cables
The ground is typically twisted/spiraled around the four conductors in the opposite direction that the conductors are twisted/spiraled. If a shield is used, then it is recommended to place the ground outside of the shield. It is also recommended to space the shield a bit away from the conductors but it can be difficult to decide what "spacing" material to use so many would simply place the shield directly over the pvc sheath carrying the conductors without using spacer material. Finally, connect the ground wire at both ends and the shield only at the plug end not at the iec end.