All I did was use the CHEAT.DAT from Ryder sticky post. Edit the CHEAT.DAT with the r4 thingy whatever it was called. Select the Pokemon Platinum (U), rename the (U) to (E) and change the GAMEID if you have a Pokemon Platinum EUR nds rom on your desktop. Save the CHEAT.DAT and pop it in your flashcart and viola! It works perfectly with US cheat codes on the EUR version.