WordPress 3.0.3 custom menus (register_nav_menus)

Hello.

I use WordPress 3.0.3 and in my functions.php I use this code to register three menu positions in my theme :

register_nav_menus(
    array(
        'main_navigation_menu' => 'Main Menu',
        'footer_links' => 'Footer links',
        'blogroll' => 'Blog Roll',
        'latest_wordpress' => 'Latest WordPress Download'
    )
);

Then in my theme I use this code to create the menu positions :

// Code for my main menu
wp_nav_menu(
    array(
        'menu' => 'Main Menu',
        'container' => '',
        'menu_class' => 'main_menu',
        'menu_id' => 'menu-main-menu'
    )
);

// Code for my first side bar menu
wp_nav_menu(
    array(
        'menu' => 'Latest WordPress Download',
        'container' => '',
        'menu_class' => 'latest_wordpress_download'
    )
);

// Code for my second side bar menu
wp_nav_menu(
    array(
        'menu' => 'Blog Roll',
        'container' => '',
        'menu_class' => 'main_menu'
    )
);

// Code for my footer menu
$args = array(
    'menu' => 'Footer links',
    'container'=>'',
    'menu_id' => 'footer_links'
);

wp_nav_menu($args);

Finally in my back end I create four menus (i.x: “Main menu”, “Side Menu #1”, “Side Menu #2” and “Footer”) and then I assign each of this menus in my menu positions that I have register thru the functions.php

The problem is that the menu position “Latest WordPress Download” display the “Main menu”.

Any idea on how to solve this problem please 🙂

Kind regards
Merianos Nikos