< Have you try it by your self ?
Of course I had try ;) It's work very well for me :)
And yes you right it's Quick Time :) flash is streaming so no need to wait from the beginning :D (I had repaired)
I believe that you have not the last versionQT 7.2 plugin or Codec! http://people.csail.mit.edu/tbuehler/video/codecs/quicktime.html (sorenson?) !
or maybe a very slow connection?