If you downloaded the os from microsoft and burnt it onto a disk then it wont work I did the same thing just as microsoft said and its crap. I had to spend the few $'s to have them ship me a cd afterall its still free just shipping cost. Then It would work now to just figure out the harddrive drivers. If you have an SATA drive you will need to find ou if its drivers support windows 64bit.

I'm from UK and i downloaded the huge 480mb windowXP 64-bit trial and i done what it asked *open nero 6 record the ISO onto CD*. done that but it doesn't work.
Then i tried opening the ISO via winRAR copy all files then paste it on a blank CD using nero 6 then click on burn. at this point it should pop up a window with tabs..
On the left you should see CD-Rom, Copy CD, VCD, SVD etc etc, scroll down to CD-rom(boot) then hit burn.
 
dont bother going through them, i tried and it boots on the CD but it boots from DOS which window doesn't boot from it
 
Any ideas? mcyflyags, you bought the trial CD from microsoft does it install well?
 
i get this missing or cant intialise VPNC or something like that
 
i have;
 
AMD Athlon 64 3400+
Asus K8v SE deluxe
766mb RAM
Sata Raptor 70gb HDD
 
please help..
 
 
(bah.. my english is scrubby) :x

did you know there is a minimun 1 gb ram needed for xp 64 bit.
it might have something to with your prob
maybe not