bbPress.org

Don’t rename bb-config-sample.

Finally, I have also created the database in phpMyAdmin. Of course there’s 0 tables.

That’s fine You have to create the DB before bbPress can connect to it. bbPress doesn’t make the DB for you (any more than WordPress does so this should be familiar).

You should be able to run the install now, though make sure bbPress can write to the bbpress folder, so it can create the bb-config.php file as it goes (you can remove the access later).