Non-Technical Support Forum

"Invalid Entry"  will help you set up your signature. Since you already have the sharable image and know the number, you can skip to step 2.

As for the billboard, if you go to your Options tab and then Personal Display Options you'll see where you can edit the billboard. Or you can click this link   to go to the page. You'll notice in reading the information there that you cannot use text, bitem, citem, and other large format tags in the billboard section.

Hope that helps!