Cellular Data settings for iphone 3GS on iwireless (Iowa)?

I have an iphone 3GS, GSM unlocked to run on the tmobile affiliate iwireless. It is running iOS 5.1.1 and I can't figure out the data settings. I want to be able to use mms messaging mostly which doesn't work right now. And I want to add a data plan. I believe I'm limited to Edge with iwireless on the iphone but it's better than nothing. There are several sites out there with settings but none of them have been any help to me so far. The settings I need are as follows:

Under Settings>General>Network>Cellualar Data Network, we have:

Celluar Data,
APN:
Username:
Password:

MMS,
APN:
Username:
Password:
MMSC:
MMS Proxy:
MMS Max Message Size:
MMS UA Prof URL:

Internet Tethering,
APN:
Username:
Password:

Please, please help if you can!

You can ask your question to http://www.insidr.com/in/sur-2

the professional employees of Tmobile will guide you to right statement.

Because we don't carry the iPhone, and don't know it's settings, we can't give you specific instructions. However, the following information is what we use as settings for picture messaging.

Other customers have had success switching from the WAP9 settings to WAP1 settings, but we can't guarantee this change or these settings will work.

Voicemail Center Number: 13199819999
SMS Center Number: +13199819700

Web 2
APN: i2.iwireless.com MCC: 310
MMSC: http://mmsc.iwireless.dataonair.net:6672/ MNC: 770

Web 1
APN: wap1.iwireless.com
Proxy: 209.4.229.31
Port: 9201
MMSC: http://mmsc.iwireless.dataonair.net:6672/
MMS Proxy: 209.4.229.31
MMS Port: 9201

Powersupplize
APN: wap9.iwireless.com
Proxy: 209.4.229.32
Port: 9201
MMSC: http://mmsc.iwireless.dataonair.net:6672/
MMS Proxy: 209.4.229.32
MMS Port: 9201