Some issues after migration

Last night I've moved directadmin from one box to another box for a customer, the old install was RH9, the new one FC1

Directadmin wise, I've moved over the whole /usr/local/directadmin/data dir for the CP config..

It almost went smoothly, but there's a few small issues..

As admin in 'show all users', users that exist under a different reseller don't show up there, and some users IN those resellers, show no domain in the show users list, just empty tables in traffic, disk usage, etc..

DA generates errors when it tries to display these user values in the error.log:
2005:05:25-15:44:39: ConfigFile::fillFromPost(NULL)
2005:05:25-15:44:39: ConfigFile::fillFromPost(NULL)
2005:05:25-15:44:39: ConfigFile::fillFromPost(NULL)
2005:05:25-15:44:39: ConfigFile::fillFromPost(NULL)

But I can't figure out on what it chokes..

Anyone an idea ?

First, why Fedora Core 1? Fedora Core 3 would have been the much wiser choice.

It might work better if you simply made a backup of all users for each reseller and restored on the new system.

Have you verified the user data files?
Were they the same version of DirectAdmin on both servers?