I looked through the files of the version that I have and it doesn not contain any license information, so I am not sure if we can legally assume that it was GPL since it was on this site, or perhaps that was exactly why they removed it, since its status is unclear.
If someone has an older copy that specifically states it was GPL, we should start there...
On another note, does anyone know if there is a setting to resize the images and add rounded corners? So I could easily crate images like these: Algozone Template