Pokemon SS problem

I've been lately hearing that pokemon HG/SS works great in Desmume but I can't save my progress so please help!!I play on 32bit Windows 7 OS.

If you can't get it working, useNo$GBA.http://www.mediafire.com/?91snpqgjmaio991Pokemon Heart Goldhttp://www.mediafire.com/?en97zg5uyhamof3Pokemon Soul Silverhttp://www.mediafire.com/?npbhwr2l6y7b62cOpen No$GBA, go to Utility > Cheats > Add new and put this cheat020DE16C E1A00000
020D3FA8 E1A00000Click on Action Replay DS and RAW then click OK, turn the cheat on and the black screen will go away.