-Unzip the file contents into your /.minecraft directory, if you need help finding this folder you will need to know where it is for any texture set so there are plenty of guides on this.
- Run the MCpatcher and select the "minecraft enhanced v1.4_01 texture.zip" that was contained in the zip for the textures. Make sure all the boxes are checked and click patch.
THIS IS NOT OPTIONAL!
-Optional but recommended download the mod pack and copy zip contents the class files into your minecraft.jar, also download the moon/sun pack and copy the contents of the 256x pr 64x folder into your Minecraft.jar into the "terrain" directory This is the same place the normal "moon.png" is make sure you get them with the other one of the mod won't work right.
- REALLY OPTIONAL AND NOT RECOMMENDED SHADERS Download the shaders and read the readme included it will explain the Presets and you can pick what works best for you. Just run the installer of your choosing and it should automatically work.
If you have any problems with installing, there are numerous videos on youtube how to install this pack or any other. Really this is something you're going to have to learn anyway if you are going to mod minecraf it's not difficult once you get the hang of it.