Hi Rodiau.
Have you gotten ur problem fixed yet?
Regarding ur missing hall.dll message, what you got to do now is to boot from the Windows XP CD again. Now, delete the NTFS partition that u created earlier (under drive C

. Then, quit the Windows Installer (F3).
WHen u mac restarts, hold down the Option key (or ALT key), and u will see the Macintosh hard drive. You will now be able to boot in Mac OS X.
Use ur bootcamp assistant to delete the windows partition - and then, recreate the windows partition.
The steps after that are taken from the apple support site by this guy (pdxbarett):
Boot Camp Assistant should have instructed you to insert the XP CD in the drive and then it will restart. This is what you want. After some time, you will get a blue screen with white text in the upper left hand corner that says "Windows Setup." On the bottom of the screen there will be some words telling you this and that is loading. Keep an eye on this. It will slowly list a bunch of things that it is loading. Toward the end, it will say something like "Starting Windows Setup." At this point, press and hold the F10 button. Keep holding it until you get a black screen with white text.
You are now in the Recovery Manager. You will be asked what volume you want. The only choice you should have is 1. This is your new Windows partition, it is not your Mac OS partition. YYou may safely type "1" (without quotes) and press return. Then, the prompt will look like this:
C:\WINDOWS\
At the prompt, you type "cd.." (without quotes) and press return, the prompt will now look like this:
C:\
Now, we are going to reformat your windows partition as NTFS. To do so, at the prompt type the following without quotation marks "format c: /fs:ntfs" When typed into the prompt, it will look like this (pay close attention to spacing)
C:\format c: /fs:ntfs
It will give you a warning and ask if you are sure. Type "y" and press return. It will take some time to format and you will see a percentage counter counting up from 1% to 100%. When it is done, you will be back at the C:\ prompt where you will just type "exit" and press return.
Now, Windows Setup should proceed normally.
Let me know if u need more help.