Help, need help booting XP from external hard drive

Hi all, i can't seem to get XP to boot from my external hard drive.
OK, heres the story. i have an imac. i use bootcamp to run OSX and XP. things are good. but i run out of space, so i buy myself a 2tb bare drive and swap it out. so i put the original internal with OSX and XP into an external firewire/usb enclosure. I install refit. I hold option on startup and it shows that i have a windows and a mac OS i can boot from the External firewire disk. looks great, but when i choose the windows from the Ext disk, it doesn't boot, instead it loads windows7 on my new 2tb internal disk.
i hear its hard to boot windows XP from an external disk. my professor told me it has something to do with the boot.ini file on the XP disk... something about changing the value of the "rdisk" to 1, which i have done.
i am not trying to reinstall xp, rather just boot from it because i have so many applications/plugins that i do not wish to reinstall.
Does anyone know if this is possible?>> Logon to windows7, and create a system image/backup of the system FROM the XP external disk? and then reinstall XP on that disk, then restore back onto itself? that way i won't have to reinstall.
anyone have any ideas?

Hi boi,
you can't start ANY windows OS from external HD...

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Message Edited by joka on 10-30-2008 04:15 PM

Hi joka!
You post an interesting question which puzzles
me. I just did some casual surveying of
Mac enthusiasts around me and learned that they are often loyal because of the
way Mac Book Pro is manufactured. However, all of them agreed that Mac OS X is
one of the reasons they own a Mac and that it would seem more practical to get
a PC in your scenario. I understand why some
customers want to tap into the coolness factor of a Mac Book Pro – yet may need
Vista or XP for business. This is simple enough to achieve using Boot Camp. What
you want to achieve may be possible, but not practical because of slower data
transfer rates to external hard drives. Perhaps
if you still want a Mac, then you would be better off leaving all three OS
choices on the ample Mac internal hard drive and use the external drive for
storage? Anyone else have suggestions?
Matthew|Community Advocate | Best Buy® Corporate
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