Download the app called EasyTether. Its really easy to use. It will have you download the software for your PC through it, install on computer, enable usb debugging, and click connect on your pc. I use it with SC 2.9.2 w/ ec10 voodoo. Works like a champ.
i have been tethering with a hacked verizon mobile hotspot, first on stock 2.1, then stock eb01, then sc 2.9, sc2.9.2 with stock kernal, now 2.9.2 with ec10 voodoo... never any problems. It seems to be a big topic about the tethering thing, but has anyone heard of people actually getting nailed for tethering?