First off - Thank you very much guys for keeping this thread alive and making BIOS files available.
I'm not into O/Cing at this time, but I really needed the virtualization to work ( amd-v ), and I'm happy to report that it does - with G18 BIOS (and possibly all the way back to G12). The default settings didn't make it work, but enabling "virtualization" and "amd-v" plus "something else" (which I haven't figured out yet) made it work. (I made so many BIOS changes during last reboot - I don't know what did it - but it was likely something that needed to be disabled.)
Anyhow, I've been running on P16 BIOS for the last year with no option for virtualization, and G18 has been here all along!
My CPU: AMD Phenom II X4 965