I'm using TwentyTen for the first time and I'm looking at the Custom Header section in the WP-Admin and it looks really interesting. Problem it seems you can only upload images. Not a sequence of them. Reason I ask is the client wants to do a simple JQuery-like slideshow with images fading in and out of each other. I'm not sure if that's feasible with the Custom Header system or if I need to hard code it in my header.php file. Can anyone clear this up?