8320 as a modem HELP??

Hello

I'm new to BB and need some help newbie style as I know little on the menus and features.

My son set up his laptop to his BB 8320 using the USB cable versus Wifi.
it needed some configurator software on the laptop to work.

Problem comes in that ATT had the BB8320 listed for the configurator. T-mobile does not and I'm clueless how to proceed.

T-mobile did have their settings for manual config, but I'm clueless as to what /where the info would go on laptop or BB.

I'm clueless to even do an effective search on the subject so if this is wrong forum please move, if a link can be provided to accomplish this please post.

Thanx in advance.........

Using a BlackBerry as a tethered modem is just a matter of getting all the setting correct.

Using BlackBerry As Modem - BlackBerryFAQ

If you use T-Mobile:
.........Username: (Your TMobile 10-digit phone number)
.........Password: (Your existing TMobile.com Password)
...

TMOBILE USA Users (Success!)
+cgdcont=1,"IP","wap.voicestream.com"
This is a newer string from TMO that works: +cgdcont=1,,"wap.voicestream.com"
Another alternate string (required for BlackBerry 8100 Pearl & BlackBerry 8800): +cgdcont=1,"IP","wap.voicestream.com"
...