Oh wow thanks selgin - so making it 0 as an end fram will auto set the total frames depending on when the last Key was.

In AS6 you can also change the time by going to the second box right above the word timeline in the timeline and put in how many frames you need - where as mine may say "Frame 0 of 240" I just put the number of frames I'll need in the last box and wallaa bigga hope this helps.