Before you ask, it's not possible to play Game Maker games on the DS. Period. Game Maker is not open source, the games it creates are not open source, and everything is designed for an x86 processor architecture running a Windows operating system, none of which the DS has.
A user once attempted a GM6<->DS converter program, but he was stopped by Mark Overmars before getting too far.
Sorry. I agree that it would be nice to just be able to use Game Maker to create games for the DS, but it simply isn't possible.