[CentOS] Centos and SAMBA

Is anyone here doing real use of SAMBA as an NT domain controller?

I have been attempting to follow:

http://web.vcs.u52.k12.me.us/linux/smbldap/

Which is set up to work with Fedora core 4  (how is this equiv to centos 4?)

It looks like I am rather far along.  Hit my first obvious problem with the 
IMC populate script.

It would be nice to have a centos version of all this....