Flash FLV in iFrame Alpha Channel Not Working

Hi
I was trying to make one of those overlay videos where you see the webpage behind the video thats playing, there's a person talking to you in the foreground, usually shot on green screen
I processed the footage with alpha channel intact, (checked with Sorenson flv player), all the way to placing it in an iframe on a iWeb page and I think that is where the problem occurs, the transparency goes to a black background. I must be missing a piece of code somewhere. Any ideas as to fix will be appreciated. thnx

Hi
Thanks for info above...
I discovered that iframe is writing a line of html code that I had to change by hand, it was a background color call and the value was #010101 something like that, so I erased that entry and left it blank, save the html file, uploaded it, and BOOM the black background just disappeared... NOW I need to get it working in Internet Explorer, IE is adding a White background to the video. Any info appreciated

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