Toolserver:~multichill/gotsource.php

This is a tool to find the source of an image. You can enter the location of the image you want to find the source of and this tool will look if it can find the image at another wiki. The tool takes two parameters: "language" which is for the name of the wiki (will primarily be used for commons, per the discussion at http://commons.wikimedia.org/wiki/Commons:Village_pump/Archive/2008Jun#Got_source.3F) and "image name" which is obviously the name of the image you are looking for.