Custom Page Templates

hi

the option does not appear unless you have created a custom template

read this: http://codex.wordpress.org/Pages#Creating_Your_Own_Page_Templates

On that page, scroll down until you see this. Follow the instructions. You must put a specific comment block at the top of your custom page template (see below for syntax)

Creating Your Own Page Templates

The files defining each Page Template are found in your Themes directory. To create a new Custom Page Template for a Page you must create a file. Let’s call our first Page Template for our Page snarfer.php. At the top of the snarfer.php file, put the following:

<?php
/*
Template Name: Snarfer
*/
?>