Here's a Commodore Joystick Map that works with THEC64 and Mini:
T:Zeta Wing
X:64,pal,fullheight
A:Sarah Jane Avory
E:shoot
Y:2020
J:1:JU,JD,JL,JR,JF,JF,,,,,,,,,
J:2*:JU,JD,JL,JR,JF,JF,,,,F1,F3,,,,
The back two buttons on THEC64 Joystick are used on the title screen.