In this video James will walk you through the steps involved with setting up your environment. would be easier to just follow the steps in the presentation so u can take it at your own speed. download the Flash Player 11 and playerglobal.swc and grabe the Flex 4.5 SDK or higher.unzip the sdk and place it in your sdks folder add the player into the player folder and install the 4.5 sdk. James recomends downloading the latest build of Away3D from GIT and not from the SVN that isn't as stable and add a few magic compiler arguments.