The D5 code available in the issue queue has not been completely upgraded from 4.7, and the email part of the code is quite messy and doesn't work. I need to do a better account registration and notification function for this. Instead of creating 'from scratch', it's my intention to do using current drupal functionality, submitting the user_save function (not the db_query approach) and that would allow firing the user notification.

This will clean that part of the code so we can integrate in D6 branch easily.