I have blogged the installation of OpenOffice 3.1 on Ubuntu 9.04 a few months ago.
OpenOffice 3.2 is not available on launchpad at the moment. Download it from the OpenOffice Website or use this direct links instead.
* German 32-Bit
* German 64-Bit
* English 32-Bit
* English 64-Bit
Extract the file after download and install the paket: (Uninstall old version of OpenOffice if you have already installed version 3.0 or 3.2 !!)
tar vfx OOo_3.2.0_LinuxX86-64_install_de_deb.tar.gz
sudo dpkg -i OOO320_m12_native_packed-1_de.9483/DEBS/*.deb
sudo dpkg -i OOO320_m12_native_packed-1_de.9483/DEBS/desktop-integration/openoffice.org3.2-debian-menus_3.2-9472_all.deb

There is an error in the current version of Samba on Ubuntu Karmic you find in the samba log file (/var/log/samba/log.smbd) this message:
[2009/12/07 12:26:26, 0] smbd/server.c:456(smbd_open_one_socket)
smbd_open_once_socket: open_socket_in: Address already in use
The best solution is a downgrade to version 3.3.2:
wget http://security.ubuntu.com/ubuntu/pool/main/s/samba/samba_3.3.2-1ubuntu3.2_amd64.deb
dpkg -i --force-all samba_3.3.2-1ubuntu3.2_amd64.deb
Update:
Problem solved (Version 3.4.0)
Install Mozilla Thunderbird 3 on Ubuntu with paketmanger.

Add the repository:
sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
Add repository key:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 247510BE
Installation:
sudo apt-get update
sudo aptitude install thunderbird-3.1 thunderbird-3.1-gnome-support
Older Ubuntu versions:
Edit “/etc/apt/sources.list” and add the following lines:
deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main
Add the GPG key:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 247510BE
sudo aptitude update
sudo aptitude install thunderbird-3.1 thunderbird-3.1-gnome-support
Note: Replace “jaunty” with your Ubuntu version.