Okay so im confused with all the up down yes no back forward left right posts on here so please help me.

I have a 3G iphone on T-mobile of course and its unlocked and jailbroken on 4.1 using custom FW with sn0wbreeze.

I DO NOT have a data plan just wifi and Have had MMS in the past on 3.1.3 without a data plan.

Im trying to find the cydia things to download or settings in network that have been confirmed to get MMS working on the 3G with 4.1

Thanks everyone!