OK, thanks. A couple additional things I might suggest would be, when you get one of these errors, (1) rebooting your computer--some updates require a reboot before taking effect, and this could impact the ability of subsequent updates to be applied until you do--and (2) running a manual LiveUpdate, to see if the remaining updates will now install.
Good luck, and please keep us posted.
V/R,
--DistEd2