I'm using a jailbroken and unlocked iPhone on O2 in the UK.. I've been trying to use SwirlyMMS to send/receive MMS.. I've checked that my settings are correct however when I try to send a message nothing actually happens. I haven't been able to receive them either. When I send, the little rotating wheel appears, I assume to show that it is processing, but after that the application just closes and I hear nothing more from it! Please help, someone! I really would like to be able to use this feature. Thanks!