I looked at Scott's web site and, your right, it isn't much help.

If Scott USA is no help, about the only thing you can do is find a good bike shop of any kind and take your bike to them. They should be able to match what you need. There is nothing unique about Scott's headsets and, as you noted, there are basically two different integrated standards, Cane Creek and Campy, and they are pretty easy to tell apart.