[happycrapman]

I am not sure how I managed to do it but i used to have the APN editor from BigBoss and now i don't. I am trying to set up APN editor but the attached screenshots pop up whenever i try to install it via Icy or Cydia, it's becoming obnoxious, I have tried removing and reading bigboss to my source list and that's about as far as my knowledge on this goes...please help

[happycrapman]

I forgot to add that currently I'm on a prepaid at&t plan but I am trying to reinstall this for when I go back to t-mobile, and so I can have MMS in the meantime

[sursture]

You can just as well use iPhone Configuration Utility from Apple - both PC n MAC versions for Free.

Here: Apple - Support - iPhone - Enterprise