The easiest way to do this is with composer. Using the latest version of Eloquent with PHP 5.2 shouldn't cause many issues, if any.

In case you didn't know how to retrieve the standalone module, you can do so easily with Composer:

{
    "require": {
        "illuminate/database": "*"
    }
}

Then run:

composer install

create a database.php file in your source files like so:

<?php  
require 'vendor/autoload.php';  
 
use Illuminate\Database\Capsule\Manager as Capsule;  
 
$capsule = new Capsule; 
 
$capsule->addConnection(array(
    'driver'    => 'mysql',
    'host'      => 'localhost',
    'database'  => 'test',
    'username'  => 'test',
    'password'  => 'password!',
    'charset'   => 'utf8',
    'collation' => 'utf8_unicode_ci',
    'prefix'    => ''
));
 
$capsule->bootEloquent();

After that, just include the database.php file in any file with your classes and use Eloquent as you usually would!

As @crynobone said - this isn't possible. Marking as solved.

welp, ok, apologies for my guess being incorrect. I realize I should test and research my theories like a normal person