Thanks for the replies!
The mast rotator is triangular, sticking out around 8 inches from the base of the mast, it has a small wire to keep it from falling below the perpendicular with the mast.. Its on the fore side of the mast & has no blocks or cleats located on it..
Downhaul is another interesting one.. I assume I tie the downhaul through the eyes on the luff of the sail, but I have no idea if their should be some kind of blocks that it should run to.. The only blocks located on the base of the mast seems to be a purchase system for the diamond stays...

Thanks Guys