datel sdloader

[newbie420]

ok i have a datel sd loader i want to use it on my gamecube (not my wii) what can i do with this stupid thing i have been searching on google for months i cant find any homebrew the only thing i can find is snes9x i can get it to load games but every button exept a and b bring up the menu i went into controller config made a a b b x x y y but still when i hit x y or any other button exept a or b the stuppid menu pops up so i cant play any games someone PLEASE help me

[newbie420]

what other emulators or homebrew can i use with this?
can i play gc roms on this thing?