WordPress.org

1. If upgrading: disable the old version first
2. Transfer the 'wp-dtree-30' folder to the /wp-content/plugins/ directory
3. Activate the plugin through the 'Plugins' menu in WordPress
4. Go to the 'WP-dTree' under 'Settings' to adjust your preferences
5. Go to 'Presentation' -> 'Widgets' and drag-n-drop the widgets to the relevant section of your sidebar

If you think that widgets are lame: edit the template file that you want the archives to show on:

Displaying archives

<li>
<h2>Archives</h2>
<ul>
    <?php   
        if (function_exists('wp_dtree_get_archives')){              
            wp_dtree_get_archives();
        }else{
            wp_get_archives('type=monthly'); 
        } 
    ?>              
</ul>
</li>

Displaying categories:

<li>
<h2>Categories</h2>
    <ul>
        <?php 
            if (function_exists('wp_dtree_get_categories')){
                wp_dtree_get_categories();
            }else{
                wp_list_categories('show_count=1');
            } 
        ?>              
    </ul>
</li>

Displaying pages:

<li>
<h2>Pages</h2>
    <ul>
        <?php 
            if (function_exists('wp_dtree_get_pages')){
                wp_dtree_get_pages();
            }else{
                wp_list_pages();                
            } 
        ?>              
    </ul>
</li>

Displaying links:

<li>
<h2>Links</h2>
    <ul>
        <?php 
        if(function_exists('wp_dtree_get_links')){              
            wp_dtree_get_links();
        }else{
            wp_list_bookmarks(); 
        }

?>