Connect System Kerberos & More

I have successfully setup a 10.4.2 Tiger Server OD Master and an Open Directory Replica. Now I would like to take a 10.3.8 Panther Server system I have and join it to my OD Master as a Connected System + Kerberized. Kerberos is running on the OD Master + Replica. The 10.3.8 Server works for home directories, but I cannot get Kerberos to run on that system and want to. I have followed all of the directions (i.e. adding computer record as FQDN, mapping Directory Access authentication, and adding a Kerberos Record as the Open Directory Administrator) to no avail. Any suggestions? I might add that this was once connected a 10.3 Server OD Master where I could never get Kerberos to work on it at the time either. I thought with a little luck and 10.4 Tiger Server, it would. Nada. What might I be doing wrong?

Also, on this server, I would like to use the existing home directories with the new Tiger OD Master setup, albeit I have done something a little unusual. I have added new entries for each of the users, rather than export (long story). Can I use the home directories on the 10.3 system without much fuss? Most of the users short names on the new rig are the exact same as the old home directory short names. What permissions problems am I going to have to rectify?