1. follow this guide:
http://predev.wikidot.com/using-novaproxy steps 1-14
now you are at a command prompt for your pre (root access)
2. now go here:
http://forums.precentral.net/homebre...-required.html
and scroll down to the "Instructions (1.2.1)" section and follow those steps.
3. At this point I went back to the developer app and turned developer mode off (Pre reboots) and disconnected from USB. Now in the Application Launcer open "My Tether"
4. Click on Services and turn USBNet on, Pre reboots. Open My Tether > Services > turn DHCP on
5. Turn off Wi-Fi on the PRE if it is on. Click USB and turn USB Tethering On
6. Plug usb cable in, select charge only
7. to install the driver for windows - go back to the site in step 2 and follow the steps for "USBNet"
Now you have tether access!! Once you have done all this, all you need to do is use "My Tether" to enable or disable tethering as needed.