Robotwar Game Mapping

[Big Doggy Dog]

I attempted to map out my Logitech F310 controller so that I could use the left and right analog sticks for gameplay, but I can't get the right stick to fire at all, much less in the direction that I put it in.

 

Is there a way to map this controller in Stella so that I could use both sticks? I do plan on getting the cartridge and a Robotron controller, but I'd like to play on my PC without my hands being tied behind my back! ;0)