custom php file to display posts in descending and ascending order?????

my site: ampersandbox.net

If you go to the site on the right column you will see a “sort all by” section I need 3 functions.

• newest – will generate page that lists that displays posts from new to old
• random – will generate page like newest but in a random order.
• featured – will do same as above but of a list picked by admin … i have a plugin that allows me to generate a list of links but thats about it. its called by using `
  <?php featuredpostsList(); ?> `

so basically by default most wordpress themes does exactly what i need for the newest feature but I have switched index.php to do something else…but i still need that default function. So I assumed i could make a custom php file called SORT.php and paste the old default code that was in index.php which is…

<?php
global $options;
foreach ($options as $value) {
    if (get_option( $value['id'] ) === FALSE) { $$value['id'] = $value['std']; }
    else { $$value['id'] = get_option( $value['id'] ); }
    }
?>
<?php get_header() ?>
	<div id="container">
		<div id="content">
			<?php thematic_navigation_above();?>
<?php get_sidebar('index-top') ?>
<?php thematic_above_indexloop() ?>
<?php thematic_indexloop() ?>
<?php thematic_below_indexloop() ?>
<?php get_sidebar('index-bottom') ?>
			<?php thematic_navigation_below();?>
		</div><!-- #content -->
	</div><!-- #container -->

however i cant link to this page or get it to work…. please help! thank you!