Installing Windows 7 64 Bit from a 32 bit XP

Okay, so i have windows 7 Rc1 32 bit... and i have two hard drives. C:=windwos XP 32 bit. with all my backup D:= Windows 7 Rc1 32bit i want to install 64 bit onto the D: drive. The problem is this.......

I dont have any blank DVD's. I installed Windows 7 32 bit by mounting daemon tools on my XP verison and set the install to go on the D: drive.

I just tried to do that with 64 BIT windows 7 and it will not even open Setup.exe from the disk sayin its not a valid win32.exe I believe thats because windows XP is a 32bit XP and i'm trying to run SETUP for 64 bit.

So is there anyway i can install 64 BIT on my D: drive without burning a CD?

Seems like i have no option and will have to go buy some blank dvds's

FOLLOWED the steps got all the way to here and than i got this message!!

D:\Users\JPE\Desktop>imagex /apply f:\sources\install.wim 4 g:\

ImageX Tool for Windows
Copyright (C) Microsoft Corp. All rights reserved.


[ 100% ] Applying progress

Successfully applied image.

Total elapsed time: 7 min 0 sec





D:\Users\JPE\Desktop>g:\windows\system32\bcdboot h:\windows
This version of g:\windows\system32\bcdboot.exe is not compatible with the versi
on of Windows you're running. Check your computer's system information to see wh
ether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then c
ontact the software publisher.