I stayed up for two nights trying to find a way to enable user to login via email instead of a username. I end up breaking Joomla Core codes and reinstalling Joomla for a record 26 times. I then came accross this plugin. I didn't expect what I received from this extension. The support is SPLENDID. It is now running on my virtuemart enabled site. Thanks Dylan for such a good plugin. I will now sleep. Money's worth.