Yup you run both you run xcopy first and then permcopy second xcopy does the file copy and the NTFS permissions and Permcopy does the share permissions.
As far as where to find it.... it should be on the Windows 2000 resouce kit under the Network section.
look here for the list of all the utils.
http://windows.about.com/od/myfavori.../aa010318j.htm
I don't know of anywhere offhand on the net to get a copy of it.