Here's how you get them:

Buy 4 packs of Huggies Diapers $8.99 each
Use four $3.00/1 ANY Huggies Diapers coupons Print Coupon Now
Or use $2.00/1 Huggies Diapers Print Now
Or use $1.50/1 Huggies Little Movers or Slip-On Diapers Print Now
Pay out of pocket $23.96
Get back $10 in ECBs
= like paying $3.49 each pack after coupons and ECBs

In order to print 4 of the first coupon, you'll have to use your back button and then print it on 2 different computers.