Actionscript 3.0 ruining everything

Hi all, this should be fairly open and shut for any of you as I am a total n00b at actionscript. I’m all about quality graphics / animation and I usually get by with a minimum of actual script, but now the few things I did know have all gone down the drain with actionscript 3.0.

I used to put this on a frame:

gotoAndPlay(“win”);

And the playhead would go to the frame labelled win.
What do I have to do now to achieve that same effect?

Thanks in advance,
Jon