It looks like you are using Ubuntu in your profile icons. I'm using karmic and followed these instructions to install by package rather than compiling.
I still have "jaunty" in the line for sources.list. I have not changed it to karmic yet, but it still seems to work. I'm talking about this line in sources.list given on the above page:
deb http://debian.wgdd.de/ubuntu jaunty main restricted universe multiverse
Edit: I see that your profile says you have Ubuntu 8.04. If you still have that version, you will need to use other instructions: http://bfwiki.tellefsen.net/index.ph...on_Ubuntu_8.04