A winter-mod for the Island environment. Some Textures are not yet edited (Tunnels, Airport, Rockets), but i think this first version is worth downloading. It looks best at sunrise or night.
Put the file "wintertime.zip" into "My Files\TrackMania United\Skins\Island\Mod", if that folder doesn't exist, create it! Do NOT unzip the file. Start TMU and you can select the mod when creating a new challenge. By pressing and holding CTRL-key before loading an exsisting map, you can change daytime and select mods on previously created tracks.
The zipfile contains MT_images and music, just unzip it into "My Files/TrackMania United"