Previous/Next option. Alphabetically by Title?

Hello there!

I’m currently using http://wordpress.org/extend/plugins/post-links-redux/ For my Next and Previous links but I cannot seem to get it doing as I wish it too.

Here is the code inside:

function plr_previous_post_link($format=’« %link’, $link=’%title’, $in_same_cat = false, $excluded_categories = ”) {

if ( is_attachment() )
$post = & get_post($GLOBALS[‘post’]->post_parent);
else
$post = get_previous_post($in_same_cat, $excluded_categories);

$title = $post->post_title;

if ( empty($post->post_title) )
$title = __(‘Previous Post’);

$title = apply_filters(‘the_title’, $title, $post);

if ( !$post ) /* If no previous post, we just want the title */
$format = $title;
else
$string = ‘ID).'”>’;
$link = str_replace(‘%title’, $title, $link);
$link = $pre . $string . $link . ‘‘;

$format = str_replace(‘%link’, $link, $format);

echo $format;
}

function plr_next_post_link($format=’%link »’, $link=’%title’, $in_same_cat = false, $excluded_categories = ”) {
$post = get_next_post($in_same_cat, $excluded_categories);

$title = $post->post_title;

if ( empty($post->post_title) )
$title = __(‘Next Post’);

$title = apply_filters(‘the_title’, $title, $post);

if ( !$post ) /* If no next post, we just want the title */
$format = $title;
else
$string = ‘ID).'”>’;
$link = str_replace(‘%title’, $title, $link);
$link = $pre . $string . $link . ‘‘;

$format = str_replace(‘%link’, $link, $format);

echo $format;
}

I’ve tried various ways of editting this plugin to allow it to link to my next post via the title but it’s simply beyond my level of expertise.

I wish for it to do the following:

If you were to visit http://www.random.com/loookatme2.php
Then for the next and previous links to point towards lookatme3.php and lookatme1.php.

Or another example, If I was to create a post for every letter in the alphabet but in a random order..AECDB, then on page C instead of it linking to E and D, it’d link to B and D. Regardless of what categories. Simply Alphabetical.

I’ve searched high and low for an already existing plugin. Spent all day today trying to create one. Failed completely.

Please assist!
Thank you for your time reading this.