The three templates currently available are all at app.php/addons/supporters/templates-47
Note that the current selection is
1. Gustavo: a complete alternative.
2. An example template, not really intended for use as is but more a demonstration of how templates work.
3. An unfinished port to Bootstrap 5.
So there is essentially one complete template available as a paid add-on for supporters/Pro subscribers. There are not currently free templates or paid templates separate from the supporters/Pro program. You could of course pay one of the certified developers to make one.
Each template should come with instructions. For the example template, that would be
1. Upload the files in the templates directory into the shop templates directory.
2. Select the new template under admin > Configuration > My Store > Template Selection.
I think that Gustavo adds more instructions about turning off certain modules and turning on others.
