Attention! Attention! I think I have finally found a fix for those of you having problems with Picturemail. I can't guarantee this is going to work for you all, but, hey, I was in the same boat. The Following are the steps I took.
1. goto
www.sprint.com/picturemail and sign into your account, change your account name to (whatever you decide)@pm.sprint.com and put in your old password and then you can put in your old password again if you like, I did that.
2. Backup your settings on your phone hard reset, and let the phone power back on, DO NOT TAP THE SCREEN AND SETUP THE DEVICE YET.
3. This is the time you have the sprint rep drop picturemail off your account, then do an IOTA and then after that re add picturemail back to your account.
4. Then let your phone boot, install the customizations and reset, and reboot.
5. In your inbox you should have 2 txt msgs about sprint removing and readding services back to your device.
6. Your picturemail should now be working, so have someone send you a pic or you send them one.