Create a solid on top of the image, mask the solid, then assign the solid as an Alpha track matte to the image. And by all means, do read the help. Your use of terminology (or lack therein) will make it hard for anyone to understand you. efficient communication requires a common language and you'rre not there yet...
What do you mean by "read the help" ? Are you talking about the AE help resource or the help you wrote.
I do have a lack of terminology because I am new to AE and dont know much of the right words to use. If you read my post you will see that I said I did the best I could in explaining.
I strongly recommend that you start here:
Even though it mentions CS4 and CS5, the basic information is the same for CS3, so it's still a good place to start.
Thanks Todd I will read those.