@Trev
It looks like the link Piru posted, http://elbox.com/download/mediator.zip, is an archive created by Adam Kowalczyk, so in this case, it's both Adam and Elbox that are in violation of the GPL, unless the source code is readily available from Adam.
Elbox is distributing it, so Elbox is responsible for providing the source code.
Also, since the archive does not include offer for the source code (or mention of GPL of any sorts) it's already a violation. In such cases the license does not apply and the distribution falls to regular copyright law, in short: copyright infringement (each author of linux kernel holds copyright to their work).
