I have made my top of the page a static page with wordpress. I'd still prefer to have the ability to connect to all of the blogs. How's this done?

produce a new page template file known as page-home.php the easy way do that is copy the code from index.php to your new page... inside this site produce a new template call..

<?php
/**
 Template Name: home
 */
?>

inside this site paste your index.php code..

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
        <div class="post" id="post-<?php the_ID(); ?>">
            <h2><?php the_title(); ?></h2>
            <?php the_content('<p>Read the rest of this page &raquo;</p>'); ?>
            <?php wp_link_pages(array('before' => '<p>Pages: ', 'after' => '</p>', 'next_or_number' => 'number')); ?>
            <?php edit_post_link('Edit this entry.', '<p>', '</p>'); ?>
        </div>
        <?php endwhile; endif; ?>

this can display your house page as always, then you've to produce a new call towards the wordpress database to show your latest posts that ever groups you would like or show all posts all groups..

<?php

//The Query
query_posts('posts_per_page=5&cat=YOUR_CATEGORY_HERE');

//The Loop
if ( have_posts() ) : while ( have_posts() ) : the_post();
 ..
endwhile; else:
 ..
endif;

//Reset Query
wp_reset_query();    
?>

this can then loop with the posts and display your latest posts..

possess a assess the wordpress query posts codex