Can't apply textures on imported .fbx models

So I have the problem, that when I created a model on Blender (newest version from Steam) and then I add it to Unity, then when I try to add a texture to the model, the model takes on the color tone, but won't actually have the texture. I directly exported the model from Blender to Unity. There was a similiar post about this, but I didn't understand the answer, because I'm still pretty new to Unity. (http://answers.unity3d.com/questions/211192/texture-not-wokring-with-fbx-model.html)

In case of mistakes, sorry for bad english