Sorry these are the intructions that I used.
1. Connect to the Internet
2. Set up my connection manually
3. Connect using a dial-up modem
4. Check only the Standard Modem
5. Give the connection a name such as "T-Mobile GPRS via BB7100 USB"
6. The phone number is *99#
7. Connection for Anyone's use, or not.
8. Leave the username and passwords blank. Uncheck make this the default Internet connection.
9. Click Finish