I have been receiving an update notice for Tbird yesterday and today. Running thru the process of gksudo thunderbird and checking for updates tells me there is NO update.
OK, on to the problem at hand. While fishing around for an answer to my Tbird update issue, I saw that a Ubuntuzilla update was posted, so I decided to upgrade and dl'd the .deb. I am running a amdx64 version of ubuntu based Ultimate Edition. The problem is that deb installer tells me that the version for amd64 is the wrong architecture.
jfg69@jfg69-desktop:~$ uname -m
jfg69@jfg69-desktop:~$ ubuntuzilla.py --version
Ubuntuzilla version 4.4.7
Project homepage: http://ubuntuzilla.sourceforge.net/