I am trying to write a Playbook app using the AIR SDK, I need a surface of some kind that I can load a large image onto, then subsequently place some smaller images on top of and add the whole lot to a ScrollPane so I can pan it around the screen.

I have tried by adding the image to a sprite and displaying that in a group in the application but the image does not show up.

What is the correct surface kind I should be using here and how should I be loading the images? (currently using "Embed" and loading the image into a BitmapAsset.)

Thanks

EDIT:

```
        var scroll:ScrollPane = new ScrollPane();

        scroll.setScrollContent(image);
        scroll.update();

        scroll.graphics.beginBitmapFill(icon.bitmapData);
        scroll.graphics.drawRect(100,100,56,56);
        scroll.graphics.endFill();

        scroll.update();

```

This code causes a non-moving icon to be drawn *behind* the scrollContent, I want to add something on top of the scroll content that moves with it.