another way to do this is by making a movie of the 3 or 4 banners that you have developed. Then you can import the movies with the flash or windows tool. here is an example of 4 banners that rotate continually.
www.scanportonline.com
if you start the movie the banners will start to change in about 20 seconds.
making banners depends on your ability and the software you have. if i can help, just contact me at:
www.videopostcards.info/contactus.html

mrmagoo144
www.videopostcards.info