Odd, there seems to be something broken. It should show a list of shell plugins in a menu, here you select a shell plugin to scan. Then it shows a dialog with some infos about the found plugins. Sounds to me that your vst directories are not scanned properly for some reason. At least the buzz/gear/vst folder should get scanned where the vst3shell plugins are located.
Also is there a machines.dll in buzz\gear? If it is not there won't show up plugins in machine search.