Today (in keeping the tradition), I’ve had to install Fedora Core 6 with the recently updated Virtual Machine Additions for Linux.  In summary it just kinda worked - a glitch with the installer insisting on using too many colours.  But it worked:

Fedora Core 6 with Virtual Machine Additions for Linux 11

On a side note:  “KB 917437 Third-party operating systems supported with Virtual Server” was updated today, a snippet is below:

Microsoft plans on making Virtual Machine Additions for Linux guest operating systems available as a free download.