fresh fedora 12 install 293 updates how to go about?

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http://forums.fedoraforum.org – I installed fedora 12 now the fourth time. Each time I ruined it with the update. Too many errors, selinux denial, after update nautilus starts continuously and so on. Right now I have a working system with all preferred applications running. However how do I install all the other updates in the correct order? Thanks (HowTos)