From Page 310 quoting Roland:
'Hi Guys, after a lot of confusion tonight, I thought I'd post this, first of all, there's two types of advice going around:
the guys saying that the ipcc's work for them either have 2G iphones, or no 3G reception where their phones are working, 2G phones, you don't have to worry, someone please confirm if mms and tether are available on these?
IPCC'S ARE A BAD IDEA FOR THE 3G IPHONE, as we've not figured out the correct config for the 3G phone since beta5 as yet
if you have applied the ipcc to your phone, I'm afraid you're going to loose all your backed up sms', no way around this
for mtn, vodacom, virgin or cell c:
restore your phone to 3.0 firmware by using the restore button on itunes, (shift+restore if you downloaded manually, just restore if itunes downloaded the files)
after the restore, DO NOT RESTORE YOUR PHONE TO AN EARLIER BACKUP, SET IT UP AS A NEW IPHONE
before you sync, disconnect the phone
go to settings -> general -> network -> cellular data network
enter the mms settings on the first page of this forum thread (mtn, leave user and password blank)
now turn your phone off, and back on
now test sending an mms
the first one takes long before it works, keep trying, mtn, cell c and virgin guys might have to have mms activated on their account, vodacom activates it automatically
once the mms sends, make sure you receive it as well
then reconnect your phone, remember, SET UP AS NEW IPHONE, and reconfigure your sync settings
sorry about making you guys loose your store sms', but, i did warn repeatedly not to use the ipcc's
fxit and all the others, please edit your posts with advise and/or links to ipcc's and remove them, you're going to cause a lot of people a lot of headaches'