problem of texture

[toonys66]

Hello, sorry to disturb with my question, but on a lot of track i download, when i want to play, there is some error, problem of texture, for example, message saying "cannot find texture @ dirt sand" or case mismatch dallas 2008/rut1.png, .....
so i uess i muss have something i forgot to download, some texture i need to play??? please if you have a link to all the texture we need to load to play to all the track???
thanks a lot in advance