Thanks for taking the time to respond.
The article was very helpful ...but I think I understand the basic priciples of green screen. My challenge is that with the greenscreen image in the foreground ..I want the background to be invisible in the final rendering. I think what I have to do is create a transparent tif file to use as video track one and then a greenscreen image in the foreground. The ultimate flash file will be just the greenscreen image.
See the following website to see what I want to do.
http://www.mccallproperties.com/about/
If you can figure this out ....great!
Thanks