How to upgrade icecat to newest version

[user1]

> icecat:
>  Depends: libasound2 (> 1.0.24.1)
>   Depends: libjpeg62 (>=6b1) but 6b-16.1 is to be installed
> 
> ?

http://ubuntuguide.org/wiki/Ubuntu:Natty#Personal_repositories

Here I found the 11.04 repositories and added the following 2 lines to /
etc/apt/sources.list

deb http://gb.archive.ubuntu.com/ubuntu/ natty main restricted
deb http://gb.archive.ubuntu.com/ubuntu/ natty-updates main restricted

Then I could update icecat, and it seems to work (I hope it continues) :-)

Some other stuff were upgraded during the process as well?

and Yes, I am using 10.10