By your statistics, there are 100,000,000 AVAST users, & only 80,000 are registered on this forum. It's simply not a good place to disseminate information about a critical event.
A simple mass email, sent immediately on discovering the error, would have saved me--& countless others--much grief & time wasted:
"A major false positive event has been discovered with VPS update 091203-0, & AVAST users worldwide are seeing many files flagged as trojan Win32:Delf-MZG. We recommend ignoring these alerts for now by pressing 'no action.' Stay tuned for updates, or check the web forum for more detail."