HAAAHAHAHAHAAAA!!! I WAS SO HYPER WHEN I MADE THIS!!!
This is a tutorial on how to make fire in Photoshop CS3 or higher... I know there's a typo and I know it doesn't look as good, but THIS method is what I used to make this --> [link]
It really is about experimenting with different shades, tones, brightness and smudging until you get the flame you want. That is what makes it so fun; it gives license to just fool around
Hope this helps