Cover the mounting board with white fabric and attach it to the mounting board with a staple gun. This eliminates any rough edges and acts as a foundation for the swag and jabot.
Staple the top of the swag to the front of the board on the left side. Staple the top of the swag only, allowing the rest to cascade naturally. Do the same for the right side of the board.
Staple the jabot to the front of the board in between the swag ends. The jabot should span the entire area between the swag with no spaces in between. Staple only the top, allowing the rest of the jabot to fall naturally.