Problem FIXED:
I believe the member was using the Tilemap as opposed to using the Tile-Background.
If the Tilemap is selected and the Image (is imported to the Editor) the Image will not appear on the Viewport. The only way to get The Tilemap to appear (0n the Viewport) is to use the Pencil Tool (via the Tilemap Bar) to point and click on the Viewport. Then and only then, will the Tilemap appear on the Viewport. Please denote, when using the Pencil Tool, it will just place one Block (of the Image) at a time on the Viewport (Not the entire Image).
However, if the Tile-Background is selected and a image is inserted into the Editor. The Tile-Background Image will appear on the Viewport.
I hope this works for anyone that is Stuck like I was.