I purchased Pappy's Ark of the Covenant a while back. It is just an obj file that has no shader. I believe Pappy expects you to use it in a 3D app that can load an obj file and apply a shader to it (such as Poser, DS, Carrara, etc...)

There are D|S shaders avaiable here in  the market place (I have purchased DS shaders by mmalbert that work well in DS2&DS3) and also for free at www.sharecg.com (I have free DS shaders by Gorgehaze that work well in DS2&DS3).