"Is there anyway i can clear the installed RPM database and have it re-query the actual RPMS to make sure which version is installed. "
I don't know how to use the Red Hat automated installer. I can tell you how to do it with command line rpm:
rpm -qa > /root/data/my.rpm.list.txt
will create a file with the name of every installed rpm.
rpm -e packagename will remove an old package
rpm -i /pathname/packagename.rpm
will install a new package
You should read the install and uninstall sections in man rpm so you know what to do if you run into complications.
Be prepared. Create a LifeBoat CD.