Helping My Old Man Play Emulated Games

[Vipershark]

ugh mame is a total dick to set up
believe it or not, I was doing this exact thing the other day

you want mame32b (the one with the gui and the orange arcade machine as the icon, idk exactly what it's called)
your roms go in the roms folder in the mame directory
once you put them in there you go to audit all games in the top dropdown menu (don't remember what section it's under)
this will check all your games to make sure they work and stuff
once this is done click the working button or whatever on the huge games list and it'll tell you what games you have available to play
double click a game to start it

also if anyone knows where I can get a WORKING galaga rom please post it
I've tried at least twenty different romsites (which all had basically different releases) and none of them worked. at all.