[MpG]

Yes, you're going to have to use a T-fitting. Make sure the center hole on the waterblock is the inlet, and the outside two are the outlet.

You might also want to go down to your local hardware/autoparts store and try to get a couple of thicker o-rings for the fittings going on the radiator, since the Swiftech models have a countersunk groove in them that might keep the standard compression fitting o-rings from sealing properly. Once you get the parts, try them and see - the pressure needs to be on the oring, no the fitting itself.