Need some assistance.

I get the SSH tunnel via USB working!
However I still cannot tether my iphone. Any other areas I must do?
My config:
1. notebook:
-- winXP (with network domain)
-- IE: set socks to 127.0.0.1 port: 1080
-- wireless off

2. iPhone:
-- SSH (via BigBoss pref)
-- wireless off
-- jialbreak 1.1.3

Thanks