I'm using NO$GBA as my emulator. I opened PokeGen, and opened the .sav file with it, but it says it was unable to determine the save file, but forced it to open it as HG/SS English anyways. However, I think PokeGen doesn't recognize the .sav file since it was blank and nothing was shown in my boxes. The size of the .sav file is 521KB if this helps..