AbuelO,
It looks to me like you DO NOT have the Fastrack library. You have the old Lionel tradition O track library and the MTH track library. The layout you are trying to download is Fastrack so it will not work correctly.
To get the Fastrack library may cost a little extra. I bought all the libraries when I bought my RRT software because I didn't know which track I would end up using. As a result, my layout uses Ross, Curtis, Gargraves, Atlas and a Fastrack piece to simulate the sensor track.
