The latest release of the VM (3.02) has Ubuntu 8.04 (Hardy Heron) as its base OS.
The FreeRadius package provided for this version of Ubuntu is still broken when using perl, so this VM has FreeRadius and perl compiled from the sources, this way it is possible to use the rad2vmps module to provide for 802.1x authentication in conjuntion with FreeNAC.
Other issues to have in mind:
Have you found any more issues? Please report them in the forums or post a comment to this page.