If you have some album art that you would like to apply to a folder, just save the image as “folder” (jpeg file) and place it in the appropriate one. Then, Windows XP will automatically use that image as the thumbnail for that folder and will use that image in Media Player. Windows Media Player will automatically do this for you if you choose to “Find Album Info” when in Windows Media Player. Note that you have to have “View Thumbnails” enabled rather than list or icons. To change this, right click inside of a folder, go down to “View”, and select “Thumbnails”. After all of this, you should be able to see a thumbnail of the picture you placed in the designated folder.