stop(); not working. Movie clip is looping.(AS2)

I have made a movie clip that needs to play till the last frame and then stop there, but not dissapear. Right now, as I am putting the command stop(); on the first frame of the movie clip and on the last frame too, nothing is changing, the movie clip is still looping and does not stop at all.

What could be the problem?

p.s. I am really a beginner in Adobe Flash.