Go to Templates in your control panel and either modify an existing one, or create a new template. Two of the fields in the template settings are header and footer. You use plain 'ole html in these fields and they will insert themselves before and after the forum.

Doug
Moderator: Community Management
Captain Kirk: "Once again we've saved civilization as we know it."
Dr. McCoy: "And the good news is they're not going to prosecute."