WordPress MU

<?php
$blogs = get_last_updated();
echo 'Last updated blog IDs:<ul>';
foreach ($blogs AS $blog) {
    echo '<li>'.$blog['blog_id'].'</li>';
}
echo '</ul>';
?>

this is the last updated blogs function but how to limit to to show e.g. last 10 blogs ? i think sth should be go on get_last_updated();

Check http://codex.wordpress.org/WPMU_Functions/get_last_updated

It looks like one of the parameters you can set will limit the return results as you want.

"how to limit to to show e.g. last 10 blogs ?"

The code for this is in /wp-content/themes/home/home.php

Also, there's a few plugins aroudn that do this too. http://wpmudevorg.wordpress.com

exactly how to limit it by $quantity parameter ?

well i found it in wpmu-functions.php file ... now Solved .