FC4 to FC5 upgrade via yum

[Jim Duda]

I'm trying to upgrade from FC4 to FC5 via yum.  I followed the 
instructions found at http://fedoraproject.org/wiki/YumUpgradeFaq

I'm not able to get through the initial yum update.  I've removed all 
the packages I can which had dependencies, and I'm down to the following 
list:

Error: Missing Dependency: libneon.so.24 is needed by package librpm4.4
Error: Missing Dependency: kernel-headers >= 2.6.18 is needed by package 
audit-libs-python
Error: Missing Dependency: libgnutls.so.12 is needed by package heartbeat
Error: Missing Dependency: libgnutls.so.12(GNUTLS_1_2) is needed by 
package heartbeat
Error: hal conflicts with kernel < 2.6.17
Error: Missing Dependency: libgnutls.so.12(GNUTLS_1_2) is needed by 
package stonith
Error: Missing Dependency: libdbus-1.so.2 is needed by package notify-daemon
Error: Missing Dependency: libgnutls.so.12 is needed by package stonith

I don't have audit-libs-python, heartbeat, hal, or stonith.  Any attempt 
to even use rpm -e <any of the four> results in "package not installed."

I'm afraid to remove librpm4.4 as that will remove yum itself.

I have a custom kernel 2.6.17.13, so I don't want to install another 
kernel unless I have too.

This installation is loaded on a LTSP diskless boot environment, so, a 
fresh install is rather cumbersome, hence the yum upgrade attempt.

Can anyone recommend a solution at to how to resolve this list of issues 
so I can do the yum update?

Thanks,

Jim