ActionScript 3.0 :: Load An Image Into A Class?

I have lots of images in the library (tile1.png, tile2.png, tile3.png...) each of which are on one frame of my Tile MovieClip. My Tile class which was created when I made the Tile movieclip and pressed export for actionscript also contains some other data such as height, texture, movementCost... et cetera.

I would like to take all the stuff out the library, and load the images from a local folder, have them loaded into my "Tile" class so that when I make a new Tile object and in my main fla file if I write addChild(someTile) it will draw the tile image to screen.

Basically what I am asking is how I can do this:
Create new movieClip (Tile) object and put it in the library
Export the new MovieClip (Tile) for as3, so it gets its own class (Tile.as)
import all my pngs from local folder into the library
put them all on a seperate frame on my new movieclip (Tile)
var myTile:Tile=new Tile();
myTile.gotoAndStop(x);
addChild(myTile);

WITHOUT using the library. I want to be able to do this with only as3 if it's possible.