Create new layer and put fade2 image to the stage then convert it to symbol name fade12. At Align & Info & Transform panel, click to state button then choose align to left and distribute to top. Move key frame from frame 1 to frame 30. Insert new key frame at frame 40 , frame 60 and frame 70 in layer2. Right Click at frame 30 and frame 60 to create motion tween. After that goto frame30 and frame 60 , click on fade12 symbol at property color change alpha to 0%.

Create new layer and put fade3 image to the stage then convert it to symbol name fade13. At Align & Info & Transform panel, click to state button then choose align to left and distribute to top. Move key frame from frame 1 to frame 60. Insert new key frame at frame 70 and frame 90 in layer3. Right Click at frame 60 to create motion tween. Click on fade12 symbol at property color change alpha to 0%.

Remove frame after frame90 and press Ctrl + Enter to Test Movie. At menu File click export movie to make a swf file.
 
 
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