Trouble converting penumbra models

[Dominic0904]

Hey everyone,

I am trying to convert some of the light models from Penumbra: Black Plague to use in Amnesia, now I have been following this tutorial;
http://www.frictionalgames.com/forum/thread-11629.html

I have gotten up to Step 3 with the Material editor, where they say to open the .mat files but when I click on File - Open on the material editor to open the .mat files. Nothing happens. It says that the file is open by showing the name of the .mat file in the top left corner of the window but nothing appears in the Preview screen, it just stays at it's default Sunset image. And nothing shows up under Texture Units either. Can anyone help me out?

I've made sure to copy all the files that are named, heck I even copied over all the files from the lamp file in Penumbra just to be sure, I am using the Steam version of the game.

Thanks.