NT 4 security policies and Server 2003

Hello all,

We have recently upgraded our existing domain from a Windows NT 4.0 domain to a mixed-mode 2003 domain. Our existing users were programmed with NT Policies to restrict their access to the run command, adding printers, etc. Now, we are in the 2003 environment and we cannot remove the existing policies nor modify them. It seems they are hard-coded. The only way to correct it so far has been to reset their roaming profiles. But, that removes all of their other configuration settings. Does anybody know how we can either activate the existing policies to give them wide-open access before converting them to an OU-based policy, or is there a way to remove the existing NT policy from the user account without affecting all other aspects of the profile?