For those having trouble with RomKeeper, make sure that you download the beta1pre1 first, then download nightly, then afterwards install nightly. If you think you did something on accident, I recommend deleting any files downloaded through RomKeeper on your SD card (which should be on the root of the sd card) then try again.
@reaper420 from my understanding, there is no other method at this time, as the update is a delta file and its patched to the beta1pre1 file using RomKeeper, then is flashed to the phone automatically by itself through a reboot.