How to Deploy Software Updates to a MOSS Farm
Here is a handy article on how to deploy patches and updates to a MOSS farm. If your farm has more than one server, you can't use Windows Update. You have to download the specific patch manually and install on the farm. More details here:
http://technet2.microsoft.com/Office/en-us/library/f484f5f2-35bb-4d70-bf56-dd1c4c287c721033.mspx?mfr=true
