Actually that happends with everyone, you need to fill in the Mystery Gift ID's that matches the WC's. However even doing it this way can make some of the WC's say that you received the gift before and some saying otherwise, its not a bug or anything like that it also happends with Pokesav as well.
Strange, I tried renaming the PPSE-DS the one without music and it got stuck on that screen but works without renaming so just make sure you dont rename, thats all i can say about m3 really, thats of course if you have trouble loading it again.
Try download nds backup tool and patch it for the ARDSI and tell me if it loads
if it does load i'll make another guide using a similar method, but right now i gotta go to bed.