The full version is fully customizable -- you can change the colors of the flames (including a color fade), adjust the speed and size, and select from several layouts. You can also choose from 13 different presets to make customization easier.
TO USE: Press Home->Menu->Wallpapers->LiveWallpapers and select "Flames" from the list
Please contact me if you experience any problems. I want this app to work perfectly on all devices!