Installing 2.6.9-1.1_FC2 from updates-testing on FC2 barfs:

Preparing...               
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   1:kernel                
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Usage: new-kernel-pkg [-v] [--mkinitrd] [--rminitrd]
       [--initrdfile=<initrd-image>] [--depmod] [--rmmoddep]
       [--kernel-args=<args>] [--banner=<banner>]
       [--make-default] <--install | --remove> <kernel-version>
       (ex: new-kernel-pkg --mkinitrd --depmod --install 2.4.7-2)

Quick examination of the scripts tells me that this version of
new-kernel-pkg in FC2 does not seem to have the --package option which
is used in %post scriptlet of 2.6.9-1.1_FC2.