Re: Booting from DVD...
Yea that's definitely the right device, it's just being stubborn. You actually want to say let me pick from a list, and have disk, but I think what you did accomplishes about the same thing. Could also have it look in the XFHX > WDM folder as well.
I'll check but I think on the drivers I downloaded they were all DEV_0005 so it might be possible the driver you got was the wrong one from creative... (even though it should have been correct)
EDIT: Yea under the XFHX > WDM folder there are two entires for DEV_000B. You might want to try pointing it at that folder and see if that does anything.