The Image Flicker plugin allows you to embed a changing image anywhere in your site. Rotate through a different banner advertisment every ten seconds, for example, or maybe have a little box in your sidebar that flicks through a selection of your best photographs. The speed at which the images flick is adjustable, as is the number of images. Each image can be linked to anywhere, and/or given a description which will appear with each image as it is flicked through.
Image display is determined by you: just change the style properties for the element #image_flicker in your stylesheet.