Add Payments to Registration Portal

[Ausm1]

I am currently trying to adapt the Registrations template that comes built into Filemaker 7. I would like to add a payment piece to it to track multiple payments specific to the contact and to the event. So I would like the payments to show up in the registrations portal and the events portal. To print payment reports for each individual contact and each event.

I understand linking and portals and relationships but am having a hard time figuring out the relationship already built into this template. Could anyone guide me through the best way to set this up?

I appreciate your time and help very much!!!

-Melody