Fast Install: Put the .zip file into the .minecraft/texturepacks folder.
Fancy Install: Either install Optifine or use MCPatcher(with HD textures, Color mod, and CTM). Then put the .zip file into the .minecraft/texturepacks folder. This will allow you to use the custom colors I've set up.
"Can I use one of your textures?":
I don't mind if you use a texture of mine, but please give me credit and add a link to one of my forum posts. It's nice to be inspired by texture packs but it's much more fun and satisfying to make the textures for your pack yourself!
Pretty big update today:
Added all GUI's (except the creative mode, which I'll make when it's changed in 1.3).
Added texture for mine carts.
Added CTM for fences, fence gate, and button.
Changed a few items.
Changed the cauldron to look more like iron.
•Added 1.3 content (except for the new GUIs, I will make those soon)
•Added music discs
•Changed tall grass and the shrub a bit.
•Made Lapis and blue wool slightly more desaturated.
•Changed the pink wool.
•Some other things I may or may not have forgotten.
-added creative, book, and trading GUIs
-added achievement GUI
-added more mob textures
-added a few randomobs (will add more later)
-added colormod support for mob eggs
-changed bedrock texture