1. open up your savegame in Hannes Convertor 2.0

2. open up the GAM_config table

3. scroll accross to the fkIDstage_current column and type in 2530

4. scroll accross again for fkIDstage_last and type in 2676

5. save using the bottom button, then the top button, making sure you click the name of the table you editted before clicking ok

and that will work, as i said you won't be able to play stage 2 but, it's only a flat stage