Hmmm, seems to be a discrepancy here. I figured the bottom bearing shouldn't have the balls exposed downward because it doesn't seem to seal it completely from the elements. The fork did already have the race pressed on, and it looked the same size as the race from my old fork, so I kept them in order to avoid having to press a new race on.
I tried Sheldon's site before posting this thread, but the part about installing a headset isn't done yet.