The Islamic Gift Economy (IGE) can be envisioned as an integrative economic system based on the operative principles of cooperation (ta‘ăwun), mutual consent (‘an tarădin /murădătin) and partnership (mushărakah).
The improved Installer can be found under the Extensions Menu. With versions prior to Joomla! 1.5 you needed to select a specific Extension type when you wanted to install it and use the Installer associated with it, with Joomla! 1.5 you just select the Extension you want to upload, and click on install. The Installer will do all the hard work for you.