Jake,
If you click on the "Pool School" button at the top right of the page below the header, you'll find several sections, one being "Pool Equipment". In this section is an article about opening a winterized AGP. You can also click on the "Board index" below the "Become a TFP Supporter" button on the upper left and choose the "Swimming Pool Care" forum. There's a section in that forum regarding opening and closing a pool.
Good luck!
Mike