1st import the sound to library, in wav. file.
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The sound file is inside the library.
after that create a new layer for adding sound.
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add the sound into the new layer.
1st :Propertise
2nd: name it
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3rd: snyc, change it into stream
4th: drag the sound put where you want to put.
-- I repeat this few steps for adding every sound.
AFTER finished all the edit, adding and others.
I export movie into avi file and swf file.
source: Image from google
sound download from 4shared.