The launcher overwrites them.
set the texture to read-only in properties
NO!http://forum.blockland.us/index.php?topic=176043.0
forget that. That's way more complicated than simply going into the files and setting the textures to read only.
oh no, you have to download a file and make a few folders
oh no, you have to click a few things and make a couple files unique
It is? Cause it only involves 10 steps and it works. It's why i have mantys textures on my server.