Miracle of miracles......
My (May 2005 original newsgroup download burned to those hideous Bulkpaq DVD's I used to send out!!!!!!) copy of the TB release is 100% OK and works a treat. All files now fully backed up on my HDD.
If all other requests to upload the TB release somewhere fails, I will gladly send my original discs out to someone if they can promise an upload to get this great DVD set back in circulation.