Flash frame query?!

Hey.

The following link shows the current state of a website i’m doing. Ideally I really want the pattern in the background to be in the surrounding frame, at a lower transparency, and match up with the 100% pattern you see in the background. From what i’ve been told it could be tricky to get the patterns to match up when the user resizes the page?! Is what I want do-able? If so any help would be much appreciated…still a bit too new at this to know how to go about it!

http://www.fairfaxhair.co.uk/test/