We've been doing Membership pricing with a straight Membership Type list i.e. without Price Sets, but now want to add an option to receive the quarterly newsletter via snail mail, with a surcharge. I created the Price Set and managed to create the Contribution Page with a checkbox for the newsletter. I need to capture the newsletter option into the Membership, how do I do that? I set the Financial Type as "Publications", maybe that's wrong.
When you set up your Price Set you need to set them up for Memberships, then when you create eg a Radio button field you should be offered your Membership Types when you add an option to that field.
You should then see these line items on the Contribution record eg
You should also be able to get these out via Reports such as the ones the LineReport extension offer.