A clean AJAX-based login, registration and lost password retrieval widget.
Yes. Just modify the al_template.php in the plugin directory.
If the Firefox Error Console finds an error about 'sack is not defined', then add "" after the '...' tags in your wp-content/themes/your-theme/templates/start.php file. Hopefully we'll come up with less of a hack for this later.
It is set to zero by default. But it is there in case your site is really fast and your users are confused by delay-less logins.