yum repo problem

i have an older CentOS 4.8 server that is running 8.4.2 and wanted to
update it. it was installed via the older yum repo pre the reorgs...

# rpm -qa |grep postgres
postgresql-server-8.4.2-1PGDG.rhel4
postgresql-jdbc-8.3.605-1PGDG.rhel4
postgresql-libs-8.4.2-1PGDG.rhel4
postgresql-8.4.2-1PGDG.rhel4
compat-postgresql-libs-4-1PGDG.rhel4
postgresql-contrib-8.4.2-1PGDG.rhel4

I fetch the updated yum.pgrpms.org repo file, but when I try and update
postgresql-server, I'm getting...

# rpm -ivh http://yum.pgrpms.org/reporpms/8.4/pgdg-centos-8.4-2.noarch.rpm
....

# yum update postgresql-server
Setting up Update Process
Setting up repositories
Reading repository metadata in from local files
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package postgresql-server.i386 0:8.4.4-2PGDG.el4 set to be updated
--> Running transaction check
--> Processing Dependency: postgresql = 8.4.4-2PGDG.el4 for package:
postgresql-server
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package postgresql.i386 0:8.4.4-2PGDG.el4 set to be updated
--> Running transaction check
--> Processing Dependency: postgresql-libs = 8.4.4-2PGDG.el4 for
package: postgresql
--> Processing Dependency: postgresql = 8.4.2 for package:
postgresql-contrib
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package postgresql-libs.i386 0:8.4.4-2PGDG.el4 set to be updated
---> Package postgresql-contrib.i386 0:8.4.4-2PGDG.el4 set to be updated
--> Running transaction check

Dependencies Resolved

=============================================================================
Package Arch Version Repository
Size
=============================================================================
Updating:
postgresql-server i386 8.4.4-2PGDG.el4 pgdg84
4.5 M
Updating for dependencies:
postgresql i386 8.4.4-2PGDG.el4 pgdg84
1.3 M
postgresql-contrib i386 8.4.4-2PGDG.el4 pgdg84
376 k
postgresql-libs i386 8.4.4-2PGDG.el4 pgdg84
179 k

Transaction Summary
=============================================================================
Install 0 Package(s)
Update 4 Package(s)
Remove 0 Package(s)
Total download size: 6.4 M
Is this ok [y/N]: y
Downloading Packages:
warning: rpmts_HdrFromFdno: V3 DSA signature: NOKEY, key ID e8e345b8
Public key for postgresql-8.4.4-2PGDG.el4.i386.rpm is not installed
Retrieving GPG key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
GPG key at file:///etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG (0x442DF0F8) is
already installed

The GPG keys listed for the "PostgreSQL 8.4 4 - i386" repository are
already installed but they are not correct for this package.
Check that the correct key URLs are configured for this repository.

# more /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.7 (GNU/Linux)
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=au6K
-----END PGP PUBLIC KEY BLOCK-----

so where do I go from here??!?