installation problem of eclipse in Google web toolkit

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Eclipse

I am new for using Google Web Toolkit (GWT).
I use this link:
http://code.google.com/webtoolkit/

to know about it.
Firstly i install the jdk1.6 on my machine as they told.
and then i try to install the eclipse,as this YOUTUBE suggest

video[^]

But installation is not completed successfully,i got error as,
An error occurred while collecting items to be installed
session context was:(profile=SDKProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Unable to read repository at http://dl.google.com/eclipse/plugin/3.7/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37.jar[^].
Read timed out

plz help.