difficulty installing android plugin for eclipse ganymede

following directions at http://developer.android.com/sdk/1.1_r1/installing.html on installing the android plugin did not work.

apparently, the URL to the update site are wrong. The correct URL is
http://dl-ssl.google.com/android/eclipse/site.xml

https://dl-ssl.google.com/android/eclipse/site.xml does NOT work so use the http URL