For those who still haven't got it to work on EDGE:
http://www.mediafire.com/?twljmdyjwim
Instructions:
1. Rename you ROM to "aimasu.nds"
2. Extract the file
3. Open aimasuDS.exe, click Yes, point the program to the folder where your ROM is located and voila!
As far as I know this only works for EDGE, but if your flashcart supports DSi hybrid games and you get stuck on the main menu maybe you can try it too.