I am trying to install Cinnamon 1.4 on my Ubuntu VM (10.10) and I can not get this to work. If someone could be nice enough to explain what i'm doing wrong I would really appreciate it!

https://launchpad.net/~gwendal-lebihan-dev/+archive/cinnamon-stable

adam@ubuntu:~$ sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable

  Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver hkp://keyserver.ubuntu.com:80/ --recv 109C2938F84496D6ACB6D805A777609328949509

  gpg: requesting key 28949509 from hkp server keyserver.ubuntu.com

  gpg: key 28949509: "Launchpad Gwendal Le Bihan" not changed

  gpg: Total number processed: 1

  gpg: unchanged: 1



adam@ubuntu:~$ sudo apt-get update

  W: Failed to fetch http://ppa.launchpad.net/gwendal-lebihan-dev/cinnamon-stable/ubuntu/dists/natty/main/source/Sources  404  Not Found



adam@ubuntu:~$ sudo apt-get install cinnamon

  Reading package lists... Done

  Building dependency tree       

  Reading state information... Done

  E: Unable to locate package cinnamon