Problems with 3D text

I have the problem where text can be seen through walls. I followed the steps seen here:

http://wiki.unity3d.com/index.php?title=3DText

Unfortunately I’m very new to this, and I don’t understand all the terms. I can easily follow steps 2 and up, but I don’t understand step one. It says “Make a shader with a bunch of code.” I don’t know how to make a shader or where to implement the code.

Any help is appreciated. Thanks!

In project view, right click, then go to Create>Shader.

Now you have a shader.

Double click it to open.

Copy the code from the wiki and paste it into the shader (replacing all the default code).

And… your done!