1.) Log into your EndNote Web account through Internet Explorer
2.) On the bottom of the page click Download Installers
3.) Under Cite While You Write select Download Windows or Download Macintosh
4.) See Help> Plug-ins in EndNote Web for more information
5.) The plug-in is a toolbar in Word 2003 and a tab in Word 2007 and Word 2010
NOTE: The guidelines below are based on Word 2007