Open Source Wallpaper Script
If you are planning to create a wallpaper website but yet to find a good wallpaper script that suits your need. I recommended OSWallpaper. This script is an open source and you can acquired it for free. Its has all the feature to create an attractive wallpaper site. Currently the script is sill in beta version but the author of the script continually improve the script. The script can be downloaded at wallpaperscript.org and you can view the demo at http://www.wallpaperscript.org/demo/
To install the script you need the following software installed on your server :
PHP
MySql
GD Library
ImageMagick
Apache 2 or above with mod_rewrite enable