As I said in the other thread
"Tasha - I'm sorry, but you've purchased the wrong thing. A Superkey was used way back when when the way we played NDS roms was through the GBA Slot. It's not actually a flashcart, but a device that allows a slot 2 cart to run NDS roms. I suggest returning it if you can."
Try ordering a flashcart from one of GBAtemps affiliates, after consulting our reviews to see which one you'd like.