xv6900 rev-a/gps upgrade help (using ubuntu)

[unsungboxer]

Hello everyone. I have been reading for hours but am unable to find good documentation to upgrade the radio on my vzw xv6900 using a linux computer. I am simply trying to upgrade the radio and GPS. I am not interested in any custom roms/themes/cubes/etc.

1. I am using Linux Ubuntu Hardy 8, and a program called HTCFlasher which allows me to flash in the .nbh file.

2. I downloaded this sprint rom (from Jim2561): http://www.megaupload.com/?d=9KGYNEWO

3. I extracted the files and found 1.nbh and 2.nbh. Based on research I have determined that 1.nbh is the radio upgrade I am looking for.

4. I entered the phone to bootloader mode (cam+pwr+reset), and flashed in 1.nbh using HTCFlasher. It was succesful, and continued to reset.

5. After booting, I found NO noticable change. the Radio and Rom version appeared to be the same (1.6.3).

I am hesitant to try flashing in 2.nbh because my guess is that it will overwrite my verizon rom with a sprint rom which will probably screw everything up.

Any help?
-Jake

ps. please do not recommend I use WINE to run any windows based programs. It simply does not work well with the USB. HTCFlasher is a great program that runs natively in linux. I think I just need to know where to get a good .nbh file for my radio.