Installing Key problem

[Steven Vollom]

On Monday 27 July 2009 12:43:14 pm Jonas Pedersen wrote:
> --recv-keys --keyserver keyserver.ubuntu.com 57529CD7DA246260

steven at Yeshua:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 
57529CD7DA246260
[sudo] password for steven:
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --
secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --
keyring /etc/apt/trusted.gpg --recv-keys --keyserver keyserver.ubuntu.com 
57529CD7DA246260
gpg: requesting key DA246260 from hkp server keyserver.ubuntu.com
gpg: key DA246260: public key "Launchpad PPA for zeroathome" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
steven at Yeshua:~$

Here it looks like the key has been installed, is that correct?  Nonetheless, 
in the Authentication of third party software, it does not appear.  I am still 
confused.  Can you explain what I don't seem to understand?  Thanks!

Steven