Mmh, it looks okay on my machine. Yes, there is an occasioanl "jump", but may be simply due to bandwidth issues and the player trying to retain sync. the only other thing of not is a slight horizontal judder with teh push transitions, but that on some level normal. It could possibly be improved by enabling motion blur or rendering teh animation wit ha higher framerate. Other than that you may try to encode your FLV file with lower data rates to improve playback/ streaming performance...
Thanks for these tips. It all makes sense.
Goodness, was my typing awful yesterday.