Director Lingo pathfinding

I need a grid of 10x10 tiles programmed in Lingo to allow me to move a object accross the grid. It must also have objects at atleast 2 points in the room which take up a whole square each, which will mean I cannot move on to that square. Also, when you hover over a tile it must highlight. The tiles must be 11x11 in pixel size. I don't think ofmyself as a Lingo expert, so could you please make comments as often as possible throughout the script.