I flashed to v1.2 here, hard reset, and the first thing I did was run the MR.X Sprint provisioning .CAB.
I did a soft reboot after that, and then installed the Sprint TV that was provided on the sticky.
After installing, I did a soft reboot. I started up my data connection from off to on, and then started up the Sprint TV application. After I click "Continue", it kind of just... stays there. For a really long time.