Start a New Project
To start a new project, simply put a copy of the ImpactJS directory (unzipped from the download), to your own web server directory.
Setup your own web server
If you have a server, everything is good! If not, XAMPP is recommended for fast prototyping on your local machine. http://www.apachefriends.org Note that XAMPP is not secure or efficient enough for final deployment.
If you need an actual testing server, email ETC Support, CC'ing your advisor(s), to request a virtual server on which to host your project's code. This varies depending on specific development and client needs.
To learn ImpactJS, it is ideal to start from the demo projects. Also make sure to check the documentation on official website http://impactjs.com/documentation
The forum is also good resource http://impactjs.com/forums/