It seems as though the jailbreak didn't work. I tried it several times, even starting with method #1, copying RUNME.sh as suggested elsewhere, but to no avail, every time I try to install the hack I get the 007 error. The jailbreaks in your thread seem to be for <4.1.
I can't do anything manually as I only get connection refused if I try to connect via ssh (both on Windows and on Linux).
I have the new black Kindle with 4.1.0, it was delivered on wednesday and is my first kindle, so sorry for the inconvenience.