[Centos] upgrade FC3 -> CentOS-4.0-Beta

I have two boxes I want to upgrade

 hedwig is in a DC in Texas so I have no physical access.
    installed RHEL-3.1
    adhoc upgrades with WBEL-3.1 packages (before I discovered yum and apt-rpm)
    dist upgrade to FC2 using apt-rpm

 rock-sand is a local development box
    installed FC3 on one partition
    installed FC2 on one partition 

I want to get both machines running CentOS 4.0
rock-sand is my practice machine, so I want to pretend I don't have
physical access.

In CentOS-3.4-Server.iso there is a pkgorder.txt with a list of the
packages in (I assume) the order they should be upgraded.  But there
is no such file in the CentOS-4.0 distribution.  Should I just use the
same order but with the new version numbers?

What issuses has anyone had with the move to udev?