Unwanted margins

i’m a newbie here, and pretty new with flash. i’ve run into a problem adding a page to a friend’s website and i could really use some help. the problem is, the banner on the original pages is flush with the top and left side, but on the page i created, there’s a thick border surrounding the banner, also separating it from the panel below it. i used the fla of the original page as a pattern for the new one, so why did this happen? and what can i do to correct this? any help will be greatly appreciated. thnx.