fenderguy4life...I've moved the vst folder to Program Files (x86) and everything works...
And then, as Scook instructed, you needed to edit your computer registry - It all worked out, and it was caused by this questionable thing of having that 32 bit plugin installed in the 64 bit Program Files. The exact same confusion happened to me - I ran the installer again when Sound Center didn't show up where I expected it - Then figured it out.
But what you did was like moving a house to a new location, instead of just updating a map. In Sonar's Plugin Manager, you list whatever locations you want to include in the scan. Ideally you have all your plugins in one VST sub-folder in the main Sonar program folder, but if you know there are VSTs in other locations, just include them in the scan list. In this case you could have added the VST folder in your 64 bit area.
Randy B.