How to install:
-Backup your minecraft.jar
-Requires Risagumi's modloader v5, so first install that one.
-Then drag and drop all files into the root of minecraft.jar with a file browser like 7-Zip or WinRar.
-Delete META-INF if you did not do that already.
-(Optional) Install the HD textures to put them in your texture pack in the right folders or add them to minecraft.jar.
-Enjoy!

More info about the mod at the forum post on minecraftforum.net.

Mod and textures made by Balkondeur!