When I did a fresh install of 12.04 a few weeks ago I run the Update Manager every day.
Everyday Ubuntu Tweak gets updated. I wouldn't mind but nothing seems to change in the application. The first few days I thought there was back-end stuff getting updated. Is it possible for one application to have updates everyday (the version number is always the same), or maybe there is something wrong with the installation? My current verson is 0.7.2.
This is what I used when I originally installed it
sudo add-apt-repository ppa:tualatrix/ppa
sudo apt-get update
sudo apt-get install ubuntu-tweak