Django: two simple modules for a small site(repost)

Two modules are required for this small Django/MySQL-based website. Currently there's around 10 simple views and authentication is HTTP-based. Module one is about adding proper authentication. This means allowing the user to: - validate the invitation code (+some mechanism to create them) - create a new account (two screens worth of data) - edit their account (reusing forms from account creation as much as possible) - adding relevant decorators to ensure no view can be accessed without authentication Module two is about messaging. Sending messages is already implemented. What's missing is: - an inbox view which displays all sent messages + replies (only one reply per message and no followup, so no threaded converation involved) - ability to reply to messages (text only) - email notification of messages received A full spec for both modules will be provided complete with database table designs and wireframes. Further cooperation is possible.