Instructions
Download textures from a reputable website or from the "Minecraft" wiki. Remember the download location you select before it completes.
Open the folder containing your downloaded files.
Press "Start" and type "texturepacks." Press "Enter" to open the folder in a new window.
Drop and drag the downloaded file onto the "texturepacks" folder.
Open "Minecraft." Click "Mods and Texture Packs" and double-click the textures that appear in the list. This loads the files and edits the map to the style coded in the pack.