Window(s) Vista Problem(dual boot)

Okey , i have 300 Gb HDD with C: D: E: F: G: H: I: L: M:
with Windows XP SP2 on M:
Windows XP SP2 on F:
Windows XP x64 on C:

C: is Primary
i m ready to loose C: and data on it

i want to dual boot Vista .

Main problem is , i have Vista x64 .

How can i dual boot Vista x64 and XP 32 bit ( both M and F )

URGENT REPLY NEEDED

i was having no patience so i've installed Vista . i now have vista and i want Xp and Vista . i installed Vista in C:

Since u installed Vista on C: drive, the boot loader of XP has gone.
So now first u need to re-install the XP boot loader.
First copy "ntldr" and "NTdetect.com" files from XP Setup CD to ur C: drive. The files will be present in "I386" folder.
Now Just boot using XP CD and enter into Recovery COnsole by pressing R and at command prompt, give following commands:

fixboot
bootcfg /rebuild

It'll re-install XP Boot loader. But now Vista boot loader will be gone.

So now boot using Vista DVD and choose the repair option (it'll be in drop-down menu).

Now everything will be fine. But I hv noticed sometimes Vista boot-loader doesnt detect XP, if its installed on partitions other than C. So if u face this problem, then install "Vista BOOT Pro" and add an entry for "Legacy OS" and set its path to C:.

*www.vistabootpro.org/