untrusted domain file share

I am trying to give read access to an un-trusted domain. I had this working
on a Win2k server be after migrating to Windows 2003 I have not been able to
give the un-trusted domain read access. I did add anonymous to the share and
permissions after finding out that anonymous is no longer part of the
everyone group. If I try to access the share from a computer that is not on
the domain the server requests a username and password. I have also enabled
the "Network access: Let Everyone permissions apply to the anonymous users"
in local security settings on the server.

Thanks for you help