I did the same
In addition I do have three other NTFS disks.
They are all accessible as far as I can tell.
One thing I did find on my install was that somehow the grub installed to another disk than I had planned.
To get my install working I just changed the HDD sequence in the bios and all my operating systems now work
Win XP pro
Win XP pro MCE (60 day trial)
But that may not be the same issue you are having?