Here is some new screen shots.
but again, i recommend that you set up your coupon code following the tutorial and then add the additional rules to your discount.
basically you are going to have a total of 5 triggers.
- if the coupon code session exists
- if the coupon code session equal your coupon code
- number of items with discountable column is greater than 0
- after a certain date
- before a certain date
let me know if you still have any other questions.