PNG Texture Help

So, I recently downloaded a file of The Emperor from Dissidia that I was going to import into Source Filmmaker and it came in 5 seperate files: an obj, an smd, and 3 png’s. I was able to line up the obj and smd files so that they fit together, but they have no textures. And that’s because the textures are on the three png files (well, two of them. The third seems to be for things like faceposing). So how do I apply the textures onto the model?