if you just want to add a links page you can do it like this:
If your plugin is for administrators only, the filename must have the prefix "AP_". If it is for both administrators and moderators, use the prefix "AMP_".
create a test php page called AP_Hello_World.php Place this code into the page and put the page into the plugins folder and you are done:
<?php
// Make sure no one attempts to run this script "directly"
if (!defined('PUN'))
exit;
// Tell admin_loader.php that this is indeed a plugin and that it is loaded
define('PUN_PLUGIN_LOADED', 1);
// Display the admin navigation menu
generate_admin_menu($plugin);
echo "Hello World";