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You'd have muuuch better luck asking about hacking-related things in the ROM Hacking section. There's an Emulation help thread at the top where you should be able to ask patching-related questions so be sure to stop by. Good luck! I'd love to help but I'm quite clueless, haha. xD; Since PC isn't specifically a hacking forum you'd get quicker answers asking in the hacking area in specific.
Either way, enjoy your stay. <3 It'd be great if you could stick around with us for a long while to come. Be sure to ask the staff if you ever need help along the way.
Hows it going. Trying to help ya out a little bit here. (it wont let me post links) So, this is how i figured it out. I googled. Patching NDS roms. A the first link was a very easy, step by step guide on how to do it. Give it a shot. :P