I spent an hour working with Waves Tech Support and they gave me most of how to do this before the call was suddenly lost. BTW, This problem will affect you when you open old projects where you used Wave VST's because Sonar won't load them.
Hi All, If you've recently updated your Waves plugins on a Windows PC and now Sonar can't find your Waves plugins or lists them twice and one works and one doesn't, here is the fix that worked for me (I have Win 7 Pro and use Sonar X2 Producer and X3 Producer). Waves Update Problems (Version 9.2 to 9.3)