I tried the most recent download and it refuses to load any of my saves (I'm using an M3DS Real on the Sakura Firmware if that could make a difference), the test .sav is opened, but after about 30 seconds, it gives errors on most boxes... And I can't edit any of the lvl 0 pokemon, which is everything included in the .sav file...
If I'm making a mess of it (downloaded the program and saved it in a seperate folder), then please tell me I'm an idiot and give me a step-by-step guide...