[btonetbone]

Flashing the radio via USB is really not a prefered method. I may be wrong, but I THINK the only way to do it is to flash the Alltel ROM that carries the radio. DO NOT let the customizations run after flashing (ie - do not touch the screen after flashing). Then re-flash to your stock ROM. You will lose all of your data and settings, as with any flash or hard reset.

The much better way is using your SD card. If you have a USB cable, simply use that to copy and paste the file from your computer to the SD card in the phone. Or you can download the file directly from the web browser on your phone. Flashing the file this way (using one of the radio only ROMs) will give you a seamless upgrade and you won't lose any data.