When you enter your 1099-INT and your 1099-DIV, as the bottom of the page it will say, "This form belongs to..." Then it will have Your spouse, You and Both of you available to choose from. Select your name and his continue.
You will just need to go back to the Income summary screen and click the edit button or pencil next to each of the forms, then when you get into the screen where you enter the numbers you will see the option to change the owner at the bottom.