Thanks for the screenshot.
Follow these steps. It's a bit long winded but it will work.
1. Change the Device in the top left hand corner to Keyboard.
2. For each of the buttons and controls, right click on the gray button
3. In the pop up, change Device to the USB gamepad
4. Click Detect
5. Press the gamepad button
6. Press Select
7. Make sure that the control appears in the lower text box. Press Set.
8. Press OK
9. Repeat from step 2 for each button and control
10. Type in a profile name in the top right hand corner
11. Press Save
12. Enable Background input
13. Press OK
14. Start the game
Follow these steps. It's a bit long winded but it will work.
1. Change the Device in the top left hand corner to Keyboard.
2. For each of the buttons and controls, right click on the gray button
3. In the pop up, change Device to the USB gamepad
4. Click Detect
5. Press the gamepad button
6. Press Select
7. Make sure that the control appears in the lower text box. Press Set.
8. Press OK
9. Repeat from step 2 for each button and control
10. Type in a profile name in the top right hand corner
11. Press Save
12. Enable Background input
13. Press OK
14. Start the game