Another shape....how to?

 From:  bwtr (BRIAN)
689.9 In reply to 689.8 
Sorry for being a new dumb member.

This is in relation to Michaels little tute.689.5

1. I presume with MoI that x is l to r, y is vertical, and x is depth.

2. I am completely lost with the sentence, "Pick the first point of the "revolve"? axis? snapped to the "oriigin"?, and the second point on the Y axis."

(I have tried all of the alternatives I can think of without getting the expected results.)