UBCD50v5 is available. See: http://ultimatebootcd.com/forums/viewtopic.php?t=1550
. The iso is only distributed via Bittorrent for the moment (no direct download from a mirror like for the official releases).
If you put it on your site, mention that this is a beta release. there is a bug in the freedos image:
The "permission denied" error you see whilst booting FreeDOS will be remedied by the next NwDsk release. I have also sped-up execution speed so you will no longer see a significant delay between finding the *.INI file and launching to menu.
So somethings don't work (see the topic posts on the link above to see which bugs are already discovered). Check it out yourself and discover things that don't work and report them so that they can be fixed.