The Drupal Aegir stackscript http://www.linode.com/stackscripts/view … riptID=203">http://www.linode.com/stackscripts/view/?StackScriptID=203 should be taken down as it is obsolete. Aegir version 0.4-alpha11 is installed via the stackscript. The current version of Aegir is 1.2 and is available in the Debian repositories.
See http://community.aegirproject.org/ for further information.