BB, the very first slot in the "images" page (click the button to the right of your skin) is for a banner. just pop the URL right in there.
I'm not sure why it would stay the same as it was before when you saved changes, unless you edited a skin that is not applied to your board. you see, you can design a skin and NOT have it show up on your board at all - until you decide to "apply" it. that makes it show up. this way you can switch between multiple skins. click "apply" next to the skin you edited/designed if it is not applied to your board.
I'm not sure why it would stay the same as it was before when you saved changes, unless you edited a skin that is not applied to your board. you see, you can design a skin and NOT have it show up on your board at all - until you decide to "apply" it. that makes it show up. this way you can switch between multiple skins. click "apply" next to the skin you edited/designed if it is not applied to your board.
