Copy Files from Win 2003 to Win 2008

I just added a Windows 2008 server as my new file server. I have a Windows 2003 file server in place at this time. I have numerous files I would like to copy from the 2003 server to the 2008 server. When I copy from 2003 & paste it in 2008 it copies fine but it strips all the shares & the file permissions when I paste it. Is there a way for me to get these files/folders from the 2003 server to the 2008 server without loosing the share & NTSF permissions? I do not have enought resources on this server to install any backup software. I tried using ntbackup & it worked except it did not restore the shares. It did restore the permissions though. Thanks