cant get pictures in text

[Iphonecracktard]

Ok been using a jailbroken 3g using t-mobile as carrier. Now I know this will most likely be something in settings.
I can send pictures vis text,oh btw im using bite, but my question is what is the setting to be to recieve pictures via text i get an error that states the media content was not included due to a picture resolution or message size restriction. Any help would be appreciated. Other than that some minor issues with being jailbroken but LOVE IT!!. i FEEL LIKE im KINDA OF STICKING IT TO THE MAN LOL any way thanks in advance for the hekp