Copy the files accross to the othe P.C. Go to add/remove programs on control panel, and hit the "install" button, then browse to the AH.exe. That should set the paths in the registry. The update patches will install fine, although AH isn't so big a download as we're used to from AW that you could just download the whole thing fresh.
I take it your son's machine doesn't have internet access (is that why he was on your in Nieman?), but should he have it, you could of course always log on to AH from his machine your self to auto update.