Blender model doesn't appear

[The chaser]

Let's see:

By what it seems, the textures are assigned properly to the model, the problem's gotta be the material.

So, first of all:

Your model folder should look like this:

model.dae
model.ent
model.dds (diffuse, color image)
model_nrm.dds
model_spec.dds
model.mat ---> Material File

Here, you must assign the color texture to the Diffuse panel, the Normal map to the Normal... you get the idea. And remain, it must have the name of the model.