If you're experiencing the issue where your controller is properly recognized in Windows but doesn't appear to control PSOBB, but X and A buttons on the controller or other labeled buttons still work, the issue is likely that you have two or more controllers plugged in or have a driver like vJoy...
UPDATE! - Check out this quick post first!
2020 Editorial Note: So you dumped Windows 7 out of necessity, and Windows 10 sucks? Well, here's something that I have used back in 2018. It's out of date, but the idea to run the game via Wine is still possible. So here's the guide, and I'll get...