Yes, no need to print out anything (anyway I have printed the confirmation letter to her), check-in counter can retrieve the info from the name print on her passport. But You may need to photo-copy your credit card (front side) for her to present for checking.
Remember to enter and check all information carefully. There is no way for you to change them [on-line] after ticket is confirmed, you may need to go to the Cebu office in-person for any change.