I have rexently finished my new texture pack using nothing but paint! but when i put it in my texture packs folder and click on it it doesnt show up. I'm guessing its because the video i used was before 1.8 but my 1.7 texture packs still work. If you need the texture pack to help me it is right here http://www.mediafire.com/?pu09hyjp8vq0917 Thanks!
Also, it does probably not work because it's a .rar, it needs to be a .zip.
Also, all the white space in and around your textures is going to show up in game, it needs to be transparent, and you cannot do transparency in paint. Use photoshop, or a free program like paint.net or GIMP to help with that.