Install Network Manager 0.7 in Ubuntu Hardy, Intrepid, Jaunty, Karmic ...etc

A very nice site called Ubuntu PPA (Personal Package Archives) where many teams contribute their own deb packages to be used by anyone, it's not an official repository and many of the PPAs are for testing purposes only, but anyway some of them are extremely useful and can keep your software packages up to date. One of the best PPAs is the one for Network Manager (https://launchpad.net/~network-manager/+archive/ppa). To add the repository to your Software Sources list:

1. Go to System->Administration->Software Sources
2. Go to the "Third-Party" Software Tab
3. Click Add
4. Copy and paste the following line there (change jaunty with hardy or Intrepid, depends on the version you're using:
   

   deb http://ppa.launchpad.net/network-manager/ppa/ubuntu jaunty main

5. copy the following (you can get it from this url: http://keyserver.ubuntu.com:11371/pks/lookup?op=get&search=0x248DD1EEBC8EBFE8) and paste it in an empty file and save it:
   

   -----BEGIN PGP PUBLIC KEY BLOCK-----
   Version: SKS 1.0.10
   
   mI0ESXX0pgEEAMDSk9Vd+OWZNIa4dL2SpqFAjVq/hm4Nac2oc33g+BwP3jFajUC/quPnYXXl
   N7GER+tTHJ9d0PlXQDoRxXFRdSjZYUHDkiT8UV1I+sTxkjDaA7uMXD4dEcL0SG0nh6OyHHrd
   9PrWzIZ/jS6PsYtKrKwHYCvP/igPr5/bH1PQoyZzABEBAAG0IUxhdW5jaHBhZCBQUEEgZm9y
   IE5ldHdvcmstbWFuYWdlcoi2BBMBAgAgBQJJdfSmAhsDBgsJCAcDAgQVAggDBBYCAwECHgEC
   F4AACgkQJI3R7ryOv+h8JQP+Ib07jYEiNG3PZf22xkV2rU/ybI9s4fT1CCoPJq5V3uJmouUs
   jtSXMD/9V44kFamw+Xq1EVEWeExfeABjaX7Vc9SR50Kl/DJVvBAbGs8rM2JxldQsl4sGWnTn
   AMJx/fv4iQsdyaklS3TcK6xo1yL21C4j0wYsmNxS16F28L3hRQ4=
   =8t/V
   -----END PGP PUBLIC KEY BLOCK-----

6. Go to the "Authentication" tab and click "Import Key File" and then select the file you've just created above
   
7. click close
8. open a terminal and type "sudo apt-get update && sudo apt-get upgrade"
9. Now you have Network Manager 0.7.1 :), I think you might need to restart networking or restart the whole machine, don't remember exactly
10. Enjoy :)