Auto eMail Template

I just need to set up Auto Email coding on current admin file. framework : Codeiginiter. PHP - Registration verification email. Registration status is initially Pending until Partner follow the email link to activate his/her account - Be able to send out {AUTO} emails to customers at each stage of order status change - Be able to change order status i.e. Pending, Consolidating, Shipped and so on. - Manage notification e-mail templates (if possible within platform of site) - Email Template Manager I would like to see your work or demo.