Button/actionscript question

I have a particle animation made in Flash 8, and for publishing purposes I want to have an opening page to begin it, then on the second frame (where the actionscript and “flames” are), I have a stop button, to return to the first frame. This works correctly, but when I press play on the first frame to go to the second, and then press stop to go back to the first, the “flames” keep playing while on the first frame. How do I make the flames stop when I go back to the first?

//edit: I also have a ‘Matrix text effect’ animation and same thing goes for that… it keeps going after I press stop.

Thanks for all your help and I hope I get a quick answer…