The plugin should appear under the name "Reference 4" in your DAW. If you can't see it, please try relaunching your DAW or rescanning your DAW's plugin list.
The plugin is installed in the following directories depending on operating system:
Windows: C:\Program Files\VSTPlugins
Mac: Macintosh HD\Library\Audio\Plugins
If you are still unable to locate the plugin, please submit a request here.
Reference 3 plugins are displayed as "Reference 3".