Alternative tent textures by Texture Freak. Will not affect existing Ashlander camps. You don't need to start a new game each time you change textures.

Choose the replacer you like, copy the contents of its folder to .../Morrowind folder and overwrite.
Everything is in its proper folders, no additional fiddling is required. Vanilla textures are in "Vanilla" folder, yep.

"Arctic Alt" interior doesn't have texture, so the color of the model will be featureless white. This is intentional, just ignore the error that will pop-up and enjoy.