Windows VST 32 bit
Both files must be in your VST folder. All instrument banks are located in the AUTHENTIC GUTAR.instruments folder. It should look like this.
The content of the demo version looks like this:
Windows VST 64 bit
with the same content of the folder as hereabove.
Mac versions (AU & VST for Mac)
The component:
The content of the component
The content of the Resources folder: here is where the instrument files are stored (mse):