Help with sounds

Hi ppl,

Can anyone help me please I am so stuck!

I am having trouble with 2 things related to my sound files.

First I have created a voiceover and lip movements for lip synching. Basically in the movieclip mc_lips I have a layer for actions and a layer for lip movements.

My actionscript is this:

intro_dialogue = new Sound();
intro_dialogue.attachSound(“intro”);
intro_dialogue.start(0,0);
play();

Which does play fine however the voiceover seems to cut out as shown here:

http://www.donnafraser.co.uk/simcss/cssDeconstructed.html

Now I am creating a similar project and having the same issue. Can anyone help me?? What am I doing wrong?

The second issue is I have an on and off sound button to stop the sound and this works fine. Apart from the lip synching keeps moving when the sound has stopped. Please ppl can anyone help me out! Its driving me potty.

Cheers