What does it do in IE? Does the video resize, and is there a green box around it?
I think I've almost managed to get the DNA Lounge popup webcast window to resize the video when you resize the window. (Unsurprisingly, the only way that worked portably was to use tables.) Does it work for you? This seems to resize properly in both Firefox and Safari. It mostly works in Opera: it resizes properly, but there's a scrollbar and the bottom text is off the bottom of the screen. I'm not sure how to fix that.
Current Music: Headscan -- Metadata ♬