Google Plugin for Eclipse

i am trying to install Plugin for Eclipse from site http://code.google.com/webtoolkit/download.html using this site

http://code.google.com/eclipse/docs/download.html  i have choose t开发者_如何学Pythonhis  one
http://dl.google.com/eclipse/plugin/3.6-Eclipse 3.6 (Helios)    according to these  rules
http://code.google.com/eclipse/docs/install-eclipse-3.6.html    but when i  put link

in the given location or new-install new software there is two choices sdk and plugin i chooses first both but i does not work then each other but neither of this two works it says does not find one or more given item please help

You install the Google Plugin for Eclipse using the Eclipse Install New Software process.

Here are the instructions, provided by Google, for adding the Google download link to Eclipse.