A goodie is a fanwork other than a text or drawing, like a wallpaper, a doll, a winamp skin, ...
Tricks & Tips
How can I install a Winamp skin?
If your skin is composed of several .bmp files, you have to copy them in a new folder created in the sub-folder "skins" of Winamp. So if you have installed Winamp in the folder C:\ ...
