Bought the replacement dispenser from APPros.com (of course). The video shows a front control panel, and our dishwasher has the 'hidden' control panel on the top of the door. So here's the difference:
1) You need to take out all the screws, except the two near the latch at the top. The other video shows only taking out the bottom six screws because the remainder of the screws hold the front control panel. I used a couple paint cans with rags on top to hold the corners of the door when open.
2) The remaining two screws by the latch hold little catch blocks that support the front panel. You can simply lift the front panel off of these catch blocks, the screws do not need to be removed.
3) CAREFUL now, the door cover panel (with the control panel on top) is still connected to the door by a ribbon cable to the computer board that is mounted to the door. Lift the door up (but do NOT let it latch closed). You may need a helper here to hold the door and panel.
4) I tried to remove the ribbon cable, but it was set rather firmly even after prying up the latch. So I left it as is.
5) So... with my helper keeping stress off the ribbon cable, I then removed the six screw from the old soap dispenser, cleaned up the inside surface with a little razor scraper (taking care not to score the softer stainless steel), and popped in the new part (that process is as shown in the video).
6) Connected the two wires back onto the dispenser, hung the door panel back on the support blocks, gently laid the whole door back fully open while holding the panels together on the sides, put all the remaining screws in (partially at first until all screws were started, then tightened all down).
7) Ta da! Done! Thanked my helper, who is also my wife. Tested the washer. Everyone is happy!