You can download a copy of the game launcher from this page. The game launcher automatically updates all game data and executable files every time you run it. Once you have downloaded the game you simply extract the Elderlands.exe file and place it into a folder where you want your game to run.
Notice for Vista and Win7 Users: If you experience any problems with Elderlands you may have User Access Control enabled and have Elderlands installed under Program Files. This can be corrected by installing Elderlands into another folder such as C:\Games\Elderlands.
Download the Elderlands Installer: Elderlands Installer