Wanda,
You can buy Armstrong Solid Vinyl Tile at Home Depot & Lowes. I dont know
which color you have, but there are a LOT of colors/patterns available.
They will gladly special order any for you.
The only difference is the tiles are 12x12 inch, as opposed to the 8x8 (or
was it 9x9) originally used. I know some folks have cut the tiles down to
the original size, but I just used them as is (12x12).
Dave