Render doesnt show old materials

So i have made a scene following one of blender gurus (beer) tutorials. Everything was fine. Today i thought id finish the little i had but when i start a test render non of the solid materials i had set show up, just gray items, the glass does… I had saved few steps forward and i don’t have a previous version. I placed a cube with color and it rendered it… I can’t figure out whats wrong and its driving me insane

You will need to supply your blend file for review.
Ensure you pack all textures into your blend file using the File / External Data menu before saving your file. Then upload to http://www.pasteall.org/blend/ and reply with the download link

http://www.pasteall.org/blend/37163
This should be the right file