Error: 150 ROM Update utility...

[bmx045]

I'm trying to install WM6, helmi's, and it gives me this error when trying to install. I have it in bootloader mode, its bootloader v1.04. I tried it on a vista pc and an xp pc with the same result. I've upgraded to WM6 in the past without a problem, right now I have verizons latest rom/radio installed- wm5. The pc makes the ding noise when the phone is connected, and it displays as connected.