How the heck do I install a Hayward widemouth skimmer? SP1091WM

I'm replacing my line (it's sitting in the sun as I type this.) I'm replacing all fittings and want to replace my old skimmer with the widemouth Hayward.

The old skimmer has ears where it screws into the (plywood) pool wall from the outside. The new one has no such mounting ears.

If I am reading the instructions right, the skimmer just "hangs" from the liner, with no other connection to the pool wall. Can this be right?

It looks like, from inside out, I would have; faceplate, liner, both layers of gasket, skimmer body.

You might want to send some pictures so someone can take a look and see if they can offer you some advice. Send them to poolforum@gmail.com and reference the URL of this thread.

Sent via iphone. Let me know if it doesn't come through.