Update software for my me45 v30 CE20 like in v21 update

Hi, I'm a siemens fanatic. I've bought an me45 recently and it was v28 before I upgrade it into v30. I'd like to update it so it has games and others update like in v21 update. I've tried to downgrade it into version lower than 21 so that i could update it into v21 but my handset doesn't work with those version (14,11,10,9,7,5) so I than update it again with v28 and v30 which has no problem until now. The only problem for me is that I'm still wondering to have those software/games update for my handset. My handset flash configuration is CE20. Would you please help me... Thank you