It's much easier to describe it with a diagram, they're not really hard to follow. The reason they make them is because it's so hard to describe how to wire something.
Especially if you're wiring up multiple plugs to it.
People have said that my diagram is actually one of the easiest to understand. I'm going to post it anyway and maybe you can figure it out from there.
Mine is wired up to have one set of sockets always on, so I'm not tying up my wall socket all the time. I can run the vacuum if I want. Then one 2-sided outlet for heater and one 2-sided outlet for cooling.
Where you see a colored wire "Squiggle" over another wire, it means they're not connected to each other, they are just crossing each other.
The black wires are the "hot" wires, and they correspond to the hot side of things including the hot side of the wall sockets.
The red is the white (neutral) wire on the electrical cord used to hook it up to power it.
Green is ground . The green wire is spliced in three places and hooks up to the ground.
(I'm leaving work soon, if noone comes back and walks you through this, I can elaborate more tonight.)
Hopes this helps.