To upload a page-specific banner, follow the procedure below:
STEP 1: Log in to your website dashboard (if you don't know how to do that, click here) and select Edit Site on the top left hand corner, next to Quick Links.
STEP 2: Go to the page where you want the page-specific banner to be on (in this case, I want it to be on the Resources page) and click on the edit current or customize button (if you have never made an edit to this page, the button will read customize instead of edit current).
STEP 3: Scroll to the bottom of the page until you see the option for Page-specific Banner, click it to open the file upload form.
STEP 4: Choose the file from your computer that you want to upload for the banner (the image needs to be at least 940 pixels wide). Upload the file, and click publish!
Let us know if you have any questions. Below is a walkthrough video.