… go like Xena the warrior princess - IEIEIEIEIEEIEIEIEIEIEIE!
It took some really nifty but tricky debugging to determine that if you have a flash embedded within an HTML page which is hosted on a different server from your HTML content, IE will send the site which hosts the flash content in the HTTP 'REFERER' header rather than the site serving up the HTML which contains the flash content. Aaarrghhhh! Why doesn't IE follow the standard: http://en.wikipedia.org/wiki/HTTP_referrer
grumble grumble .. another evening wasted on browser specific inconsistencies :(