Do you have any Flash animation you would want to set as screensaver? Here you are the solution. Instant Storm is the program you need.
If you are not used to this kind of prgrams, use the assistnt and it will be as easyas 1 2 3. You only have to choose the animations you want to be shown as screensaver and a picture to set as background when the animation doent fit the screen.
If you are an advanced user you will be able to set more features, such as the icon shown, the remaining time, etc.