sms error message on iphone 1.1.3

[just4u08859]

i cant send txt messages to anyone. im able to receive them but wen i try to reply or send a new message it give me an error. i tried putting my sim on other phone and my sim worked great. i ct send messages from iphone only. please help

[sunshine4ever33]

I cant send txt messages to anyone. im able to receive them but wen i try to reply or send a new message it give me an error. i tried putting my sim on other phone and my sim worked great. i cant send messages from iphone only. please help. I have the 3g 2.2 I use it with tmboile. I spoke to tmboile anything on there end is on right. Please help. my phone is brand new. Everything was working fine till i got the Data plan on. Also someone send me a text with a picture in it. Then It kept giving me an Error message. What a pin in the butt this is. Can anyopne help me?

[JStraitiff]

i think the title of this thread should be changed to "my iphone needs to be updated"

[sunshine4ever33]

I have the newest Version on my iphone. Do you know what else I have to do?