I'm in the same boat -- stopped at Flash 8. Just tested an small Flash 8/Actionscript 2 piece... a mutivariable gasoline cost calculator... and Swiffy couldn't do it... said 'Does not support Input Text', which of course is how the thing works, see link below. So it looks like we have a pretty neat tool for quickly made animations, Xara to Swiffy, and leave it at that for now. But your stacking them via Web Designer, that's elegant!

http://jon404.com/test/gas-calc.swf