I've got my annual extension appointment tomorrow. I had to get a new passport earlier this year including having immigration move whatever needed to be moved to the new passport.

Here's the question: Tomorrow, are they going to want me to make copies pages out of my new and old passport and bring both with me to the appointment; or will copies of all the pages in just the new passport suffice?

Same question for 90 day reporting. I haven't been out of the country since 2009. I'm I going to be required to haul around that old passport with me just to show the entry stamp, or was that something that is transferred to the new passport?

When you went to immigration to transfer your stamps they transferred everything that is relevant. You can put away your old passport.

When you apply for your extension all you should need is copies of the transferred stamps in your new passport.