Thanks for the link, but why do you suppose the "enable/disable" box left for that update is disabled? I certainly do have Wi-fi capabilities on my mid-2010 Mac Pro.
I'm sure I learnt a way to install and keep software updates a few years back, but I can't remember how. I believe there was an option somewhere, but can't seem to find that anywhere now. Anyone know how it's done?
UPDATE: I must have thought about pre-Snow Leopard because I just read that they removed the "install & keep" feature after OSX 10.5. But I stumbled across something interesting...
Someone made
an OSX service which installs and keeps updates (it doesn't appear to work in OSX 10.9 Mavericks as I tried that).
In OSX 10.6 you just access any app's Services menu (I went to the Finder's Finder-Services-Software Update Download menu, but any app's Service menu should do) which started OSX's Software Update, installed the update, then presented you with the installers inside sub-folders residing in a new ~/Updates/ folder.
NOTE: the script didn't work by putting it in ~/Library/Services/ (as the docs said) but appeared in all Service menus when I had placed the script inside /System/Library/Services/.
I accessed it from the Finder-Services menu but I suppose any app would do.
So now I have the "Mac App store update" file, although for some reason it came as two files:
031-3751.English.dist (6 KB)
AppStoreUpdate.pkg (3.4 MB)
They both presented with with the installer, but "031-3751.English.dist" told me it needed less space than the "AppstoreUpdate.pkg" for the update (see attached screenshots). Apparently you don't get the single .dmg file which a normal download would give you, so this is a bit confusing.