I am new to blender but in a tutorial that I am trying to follow. He want me to change the X, Y, Z mapping under the mapping options. The tutorial is the subway tunnel part 2.

I am adding an image to a mesh. If this helps when I start blender my options are blank in his blener it show X, Y and Z.

But I can change the Z mapping to Y but can not change the other two. Which I believe is affecting my scene. Since mine does not match his.

I am not for sure if I have something disabled.