the 2 ports on the top go to .......( 2 choices ) 2nd choice is better but you will need some longer pipe and a fitting.

1)the rocker cover (need a port putting in), and the kidney box (under the OE breather, under inlet manifold.

2) on the left side of the block(by the sump lip) there is a bolt in the block that you remove and put a fitting in(not in the bailey kit), and the other to the kidney box under the inlet.

the little one at the bottom.... is the oil return, that go's to the sump, this must return under the oil level, you can T this into the std oil return from the kidney box( theres a metal pipe thats comes from the sump, to the bottom of the kidney box via a rubber pipe, this is on 4x4 cos only)

the big one at the bottom........ is the vent, now you can route this 2 ways, to a catch tank(mirror image tank etc) or vent it out under the car as far back as possible or it will smell oily in the car.

hope this helps . (oh also all the fittings are on ebay)