I tried the three methods to obtain the two hotfixes I need - KB978411 and KB977225.
The third option doesn't seem to be functional at the moment, and one of the others (I don't recall which) failed to pass along the hotfix number and my platform (XP SP3 English).
A nice person did respond and ask for that information, which I provided. They then responded that KB978411 isn't currently available, and that KB977225 isn't available for my platform.