Help with exhaust manifold

[240 Doubledrive]

I just put aftermarket headers on my SR20DET. To do this, I had to take off the whole manifold with the turbo. The turbo had 2 lines connected to it. One was oil, and the other was antifreeze. These connectors had special screws in them that had holes on the screws. From what I understand its for the fluid to flow through them. When i put the manifold back on and screwed everything in, i didn't know how those screws were suppose to be positioned. My radiator is also eating a lot of antifreeze now. My manifold is also making funny noises like ticking but its actually the air going through them. This noise is really loud from 2-3k rpms. Any help would be nice about the screws and noise. Thanks.