Help setting up my MMS on T-Mobile

[40ozBulldog]

Okay so ive searched the fourms and I get 10 different answeres. Can someone help me with the way to get it on my particular phone with version

Im running a 3G on Version 3.1.3 (7E18)
Just need the normal MMS in the text area (the camera button)
Dont want to mess with 3rd party apps on this.

Any help would be fantastic!! Thanks in advance

tried a bunch of different cellular data network combos with no luck. Have the icon but will not send pictures. Anyone found something that works with my version? Thanks