Gameboid problems

I have downloaded gameboid from the slideme store and i have gotten 10 gba_bios.bin and none of them have worked. Every time open gameboid it says browse to find a bios bin i do go to my roms folder with my roms and my bin and When i go to my rom folder my other roms dont show up just the bios bin thing. i click the bios and then it goes back to the gameboid main menu and says the same thing and gives me the option to browse or quit like when i first opened the app.