I need to insert in my magento site the following features:
1. a configurable discount applicable to new customers (a discount in the first order of a new customer);
2. a configurable discount applicable to the customers that accept to receive the newsletter (if a customer checks newsletter, he has a discount)
[login to view URL] the email template ([login to view URL]) I need an addictional column with the discount applied for product tier price (the discount percentage applied in the order for each item).