TY754 boxes (MY98-) and TY756 (6-speed) boxes need the removal of a peice of the box where on of the mounting bolts for the box goes in. Use a Chisel and Hammer as its easier.... If it comes with the Newage Coolant pipework, there aren't any fitment issues there.
Just make sure all holes (uppipe, Oil return, etc) are fully covered up before removing the peice of the box as you don't want metal, etc getting in there.
5 bolts for D/P to Turbo, 3 bolts for Turbo to U/P.
Russell
ps - if it is an with the old style housing on the 20g (polished flat area on the Compressor housing on the top right as you look at the Compresssor housing face-on). then chances are it is a large oulet nipple on the Compressor wheel for the Boost control. Make sure you fit the vacuum hose (make it 40cm as a precaution) BEFORE fitting the turbo as it is harder to install afterwards.
Russel