Some supergun advice please

[eastyy]

Getting a uberia supergun soon does anyone have any info or links for infortamion on how to get games to run with it

Also i plan to get atomiswave but would i need to wire a fift button and if so how would i do it?
here are a few pics

http://www.john2.pwp.blueyonder.co.uk/shmups/P1010062.JPG
http://www.john2.pwp.blueyonder.co.uk/shmups/P1010063.JPG
http://www.john2.pwp.blueyonder.co.uk/shmups/P1010064.JPG
http://www.john2.pwp.blueyonder.co.uk/shmups/P1010071.JPG

thanks