ds2 Supercard rom help

Hello everyone! I am new here and I also just received my ds2 supercard, and i love the thing to death. and while i have set everything up on it the only thing I am having trouble with is running Nintendo DS roms on my card. If anybody can help me get started with what i need to do to run NDS roms on my ds2 I would be incredibly grateful! thanks eveyone!

Just install the latest firmware provided by your cart's official website, follow installation instruction provided there.
Download whatever NDS roms you want to play, and go for it.
Nothing too technical in the case of DSTWO.