I got a problem with my 3GS on t-mobile, I could send picture messages, but I can not recieve them with the ben M settings, I added in the mms UA Prof URL also..with the http://www.apple.com/mms/uaprof.rdf, with no luck...Any suggestions?
add sinfuliphonerepo.com and look for the package named MMS & Thethering for 3.1.2 for 3GS... then reset your network settings for them to take effect... then reboot and it should work fine.... test out by sending a picture to yourself....