All that I have done is modified the panel.cfg, that Weapon for FSX created for the WoP3 Spitfire but does not work. I have also modified the CSWeapon.xml so that the guns and rockets are align with the gun positions on the wings AND so that they fire towards the centre of the gun site.

I have included 4 CSWeapon.xml files. Two are aligned with the wing guns and only have machine guns and rockets with one set to unlimited ammo.
The other two use all the available weapons, that are installed with Weapon for FSX v1.0. They are NOT aligned with the gun positions, and one is set to unlimited ammo.