One way you could do it is.
o - create a normal page
o - create as many pages as you need sections. Give them a title say "toppart" , "bottompart" etc..
o - make them private and make the parent the first page you created. This isn't required but they look better in the admin page as they'll all show as subpages.
o - Put the following function in your templates functions.php.
function get_content($page){
$path = "data/pages";
$thisfile = @file_get_contents('data/pages/'.$page.'.xml');
$data = simplexml_load_string($thisfile);
echo stripslashes(htmlspecialchars_decode($data->content, ENT_QUOTES));;
}
o - then call it in your template like so.
<div id="bottom">
<?php get_content('bottompart'); ?>
</div>
This will give you all the editable section you need.
Mike.
Currently working on The Matrix Plugin...