well,- it seems you are a newby but want to create something rather advanced. If dynamic loading is to difficult for you why not just placing them inside flash without the need of preloading?
For preloading you´d first need some data that describes wich images need to be loaded like an array or a xml file, wich could look like this:
PHP Code:
files = new Array("folder/a.jpg","folder/b.jpg","folder/c.jpg");
for (var i=1;i<=files.length;i++){
container.createEmptyMovieClip("subContainer"+i,i);//create sub- movieClip in Container MC on the stage
container["subContainer"+i]._x = (i-1)*64;//arrange them in 64 pixel distances
container["subContainer"+i].loadMovie(files[i-1]);//load the image
}