Template talk:Samsung install
I couldn't get the linked Heimdall to work on Ubuntu 12.04 LTS 64Bit, so I headed over to the Heimdall homepage.
The install packages on the [Heimdall Binary Download page|https://bitbucket.org/benjamin_dobell/heimdall/downloads] are easy to install and work perfectly on Ubuntu.
Also, the final Version of Heimdall 1.4 is out.
I suggest you update the wiki template accordingly.