Barracuda SPAM Firewall 300 Restore

I have a Barracuda SF300 that was purchased at an auction. The previous owner evidently had no use for SPAM Firewall and decided to wipe the HDD’s and install a server OS. So, now I have a server in a handy 1U rack mountable chassis, but no SPAM filter. This, of course, voided the warranty and Barracuda can do nothing except sell me a new one. I am looking for a restore image so that I can reload the proper software on this device. I have a second SF, but it is running as an active filter and I cannot remove it from the network in order to ghost the image to the other filter. If anyone knows of any place where I can obtain a restore image, I would greatly appreciate it.