My FC8 installation has stopped automatically updating
that is because fedora 8 hit END OF LIFE about a year ago
there will never be any more updates for fedora 9 ,8 ,7,...
at this time ONLY fedora 10 , 11 and 12TESTING are supported and in a few months ( 1 or 2 ) fedora 10 hits end of life
Please install fedora 11