I'm using iPhone 2G z version 2.1 and I bought swirly mms long ago. One week ago app was still working no problem but now when I open it (the M is showing but not green) it sais:
Your GPRS/EDGE/3G is disabled witch means SwirlyMMS will not function properly! Maybe you have disabled it with BossPrefs or similar.
I have to say that my settings are totaly correct!
I don't know what and how I would change someting with BossPref cause I was not doing anything with it...