Gameboid Crashes

[iFry]

Hey i'm Fry and I've downloaded gameboid (full version) really because it looked like a great buy from the videos on youtube that ive seen. But i have it now and i have the BIOS but when i try to open a ROM that i have downloaded it completely turns off the Gameboid app. can someone give me SPECIFIC directions on what is supposed to be where and file types and what not?
Thanks in advance
-Fry