Are you in the recovery console or still using Knoppix?
Sounds like recovery console. Sounds like you should run "chkdsk /p" and see if chkdsk fixes any errors. When that's complete, run it again and see if it finds errors a second time.
Then try to boot, and if you still have the corrupt hive problem, try the manual repair again per the article and see if it lets you create that tmp directory.
If you still can't create the tmp directory, anything that gets you write access to the NTFS volume should work, so you could use Knoppix to gain access to the volume and make backup copies of the files in the config directory and copy the pertinent files from the repair directory into the config directory, then reboot and follow the rest of the article.