To install Joomla under your domain, please follow the following steps :-
1) Login to Plesk 10.x control panel.
2) Click on "Subscriptions" and then Click on "Manage Hosting" in front of the domain.
3) Click on "Applications"Tab and then Click on "Featured Applications".
4) Click on "Install" Button on Joomla to install the application.
5) Accept the "License agrement" and click on "Next".
6) Select the domain under which you want to install the Joomla.
7) Enter the required details and click on "Install".
8) You will get the notice "Information: joomla was successfully installed at http://test.com/joomla."
once Joomla is installed under your domain.
