I am installing Jessie in an virgin amd64 machine, and I want to install 
TDE in it.  I found Sl�vek's preliminary stable builds of R14.0.1 which 
I understand is what should be used for Trinity for now.

First however I wanted to download the GPG key; so as root I ran the 
following:

apt-key adv --keyserver pks.gpg.cz --recv-key A04BE668

The command returned the following:

gpgkeys: key A04BE668 can't be retrieved
gpg: no valid openPGP data found
gpg: Total number processed: 0

Lisi in her original post mentioned ken  ED1F4884.  That one did not 
work either.

It is safe to download files from http://mirror.xcer.cx/trinity-sb 
without authentication?

Regards, Ken Heard