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

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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.