Installing M2Eclipse from "hidden" Archived Update Site

The latest M2Eclipse Maven Plugin for Eclipse IDE versions actually has archived update site files for offline installation.

However it is currently not mentioned in M2Eclipse Installation page.

You can download the recent archived update sites here:
http://repository.sonatype.org/content/repositories/eclipse/org/maven/ide/eclipse/org.maven.ide.eclipse.site

For example, this is the latest update site as of this writing:
http://repository.sonatype.org/content/repositories/eclipse/org/maven/ide/eclipse/org.maven.ide.eclipse.site/0.10.2.20100623-1649/org.maven.ide.eclipse.site-0.10.2.20100623-1649-site.zip

To maintainers of M2Eclipse, *PLEASE* update this Installation page:
http://m2eclipse.sonatype.org/installing-m2eclipse.html

and mention the existence of the archives of update site at the following URL:
http://repository.sonatype.org/content/repositories/eclipse/org/maven/ide/eclipse/org.maven.ide.eclipse.site

I found the archived update site location by following MNGECLIPSE-858 issue history here plus some common sense. ;-)