Modding

Could you please provide more details about the model converter? Did you convert it using Archangel with the skeleton, or through an editor? This is how your model looks to me; it's clear that the problem isn't with the texture, but rather that when the animation plays, nothing is displayed except the shadow.

I exported the *.smd model in Archangel into a file that the game can read, just the mesh. Older versions of 3ds Max support skeletons, and you can open animations in older versions of 3ds Max. I have a friend who opened the animations, but he doesn't remember the specifics of the process, and I couldn't do it. This is how the model looks:
https://www.youtube.com/watch?v=qVL2Z7NOhl8
The alpha channel doesn't work on the teeth; where it should be transparent, it's black. If I set AM_ALPHA_TEST – it reads the alpha channels, making them transparent or semi-transparent; the texture completely disappears from the model.

Added after 58 minutes

Does anyone know how to import a model with its skeleton? I managed to import the skeleton into Maya the other day, but I don't understand how it should all be "organized" so that the editor doesn't produce errors.

In Archer_model, you have the mesh, and in Archer_skeleton, you have the skeleton, I checked. You don't need to export them separately; you can export them as a single *.mb file.
Don't forget about skinning, otherwise the mesh won't be displayed. When exporting, you need to specify the main bone, the global one.
Did you create the skeleton yourself, or did you extract it from the game?