WordPress MU

I have searched the threads here and haven't found a solution that matches my situation.

I have an application installed in the root of my site that uses an index.php file. I would like to install MU in the root to get the subdomain feature, and of course, it has an index.php file as well.

The threads I've found talk about merging the existing index.php file with the home.php file, but this is referenced in relation to updating a static index page to work on top of WPMU, and not an application specific index.php.

The application is a digital asset management app named ResourceSpace, found here http://www.montala.net/resourcespace.php

I was wondering if any of you might share an opinion or two on what my options may be?

Thanks in advance for your time.

which index u want to keep as domian index, application or wp.

The application.

However, I think I can safely move the app to a subdirectory and just link to it from the main wpmu page if needed.

Just wanted to know how difficult things might be before making a decision.

My bet would be to move your app away :) Even to separate domain.

my wpmu is installed in the root and i've further independent content in subdirectories...

the index.php shows like that

<?php
$host = split('\.', $_SERVER['HTTP_HOST']);
switch ($host[0]) {
case 'forum' :
$location = 'http://yourdomain.com/forum' . $_SERVER['REQUEST_URI'];
header("Location: $location");
break;
case 'home' :
$location = 'http://yourdomain.com/home' . $_SERVER['REQUEST_URI'];
header("Location: $location");
break;
case 'content' :
$location = 'http://yourdomain.com/content' . $_SERVER['REQUEST_URI'];
header("Location: $location");
break;
default :
define('WP_USE_THEMES', true);

/** Loads the WordPress Environment and Template */
require('./wp-blog-header.php');
break;
}
?>

it works...

hope this might be helpful