WordPress.org

How do I integrate it with my theme?

All you need to do is paste the following code anywhere in your theme. You can ask for help in the forums and I will help you:

<?php
    if(function_exists('wplb_login')) {
        wplb_login();
    }
?>

Registartions are not working, what do I do?

If registrations don't work, make sure you enabled them in your wordpress general settings. Go to yourdomain.com/wp-admin/options-general.php and check the box that says "anyone can register".