In WordPress 1.5 you could create a archive page for example and associate it with a theme file using the following method.
Under Custom Fields, select _wp_page_template from the dropdown. Leave the Key field blank, and enter archives.php into the Value field.
In WordPress 2 I dont see the option to select "_wp_page_template" any ideas? Or is there a different way to get "archives" to show up under the wp_list_pages function.