Did you hook up your vacuum lines to the waste-gate and the solenoid ? If so that's all that's to it, to adjust the boost, make the threaded rod on the wastegate longer or shorter. I'm assuming you have a aftermarket boost gage, high performance fuel pump and a hot wire kit for the fuel pump, fuel pressure regulator, scanmaster, etc.
Check out this for more information on waste-gate plumbing http://www.gnttype.org/techarea/turbo/turbopage.html