In our recent 1.5 release, the old "ship/pay details" converted to a more robust system called "Seller Details".
On the "Profiles" landing page, you will see the new section on Seller Details. You can click on the Help icon right in that box for more information, but I will summarize here.
Basically, Seller Details makes it possible to leave info in 1-5 major categories: Shipping, Payment, About Us, Terms of Service and Contact Us. You can create and save as many versions and combinations of this info as you need. Then when you select a template a drop down appears on the lister page to the right of the template you chose. You can pick the Seller Details profile you would like to have show up on your template.
**Seller Details is only available for use with templates!
Any ship/pay details you had created prior to 1.5 were to be converted and saved into the Seller Details for you. Check there to see if that happened. If not, that is where you would add your info to create new Seller Details.
I hope that clarifies things a bit
Thanks -
Cara