Can't install ADB driver - Tethering help

[Cvette1002]

Hey everyone. I just upgraded from a Cricket Wireless Samsung Transfix that ran Gingerbread, so I'm a little lost in this new world of Jelly Bean. I'm trying to install an ADB driver for my Galaxy S2 (Boost Mobile) than runs Jelly Bean so that I can use PDAnet to USB tether to my computer. But for whatever reason, I can't seem to either get an ADB driver to install, or figure out how to set the phone in USB mode so that it's not recognized by the PC as a media device.

Please help!