Generally to make A Flash Movie or a so called flash site you need to have knowledge in the most basic parts such as interface design, symbols, and the most important part, the preloaders.
What is a preloader?
A preloader is a scene or a clip of a flash movie, which must be small to load as soon as the browser opens a flash page. If your site is huge it might need lots of preloaders inside each scene. A preloader's main purpose is to prevent annoying slow motions while the movie plays. If you want the movie to play continuously while a viewer views it, you might want to add a preloader in your flash movie.
Technical meaning
A preloader based on it's name as you can see, preloads a certain content before playing the movie so that it continuously plays smoothly without those annoying slow motions. To trigger a certain frame or scene of a movie, you must specify this with action script using the actions panel, which you will learn as youu read on.
Step 1
In Scene one > Layer 1 create a simple animation such as a blinking "LOADING" text . Sample is as follows: insert a frame in frame 3 and use text tool and type in LOADING and place it in the center of the page. Next is you click Insert > Create Motion Tween, then click frame 3 and change its alpha properties to 0% by click frame 3, and then click the LOADING text and see the property bar show the COLOR: (setting), choose alpha and move the bar to 0%.
Step 2
Now change your frame rate to 30 fps (frames per second). this is to make the animation smooth and fast blinking effect.
Step 3
Now add a new scene. Scene 2 must have the content animation your main movie will play.
Step 4
If the last scene you use is Scene 4 and the last frame in scene 4 is frame # 150. You do this:
Step 5
Go back to Scene 1 and add new layer. Insert a Keyframe in frame 3. and then click frame 3 (layer 2) Now open the actions panel and type in this code:
gotoAndPlay(1);
ifFrameLoaded ("Scene 4", 150) {
nextScene();
}
Step 6
Now upload your files and test it. It wll surely work.