Why not just play it on your computer using an emulator or go to your local Gamestop and buy it? It's like 10$ nowadays.
Either way there isn't much any of us can do to help you, so till the Supercard team or someone with the SDK fixes it, you just need to sit back and chill.
If I remember correctly, this is the solution:
1. Load the game.
2. Save the game using a save state.
3. Load the save state.
4. Soft-reset (A+B+Start+Select).
If you're going to use the in-game saves instead of savestates, you'll probably need to do this every time you load the game (that includes saving a new savestate every load).