Adding a Banner to Your Profile Header

To add a banner image to your header:

go to "My Page" and click on the link Manage "My Page"

under Appearance, click on the link for "Appearance"

scroll down under the themes to "Now, make it unique" and click on the tab menu "All Options"

under Colors, you can choose a Side Image or a Header Image. click the
blue letters that read "none" and you will be prompted to upload your
own image into that area. (my header image banner is 955 pixels wide x
90 pixels high and fits well)

when you're done click the "save" button at the bottom of the page or you have to start all over