How do I install Eclipse Indigo 3.7.1?

I have downloaded Eclipse Indigo 3.7.1 . I used to try to install it into Ubuntu 11.10 as install on Ubuntu 11.04 but it doesn't work. Please anyone tell me how to install it into Ubuntu 11.10.

Sorry for my English :)

1. Download one of the available Eclipse bundles from the official site. I got eclipse-SDK-3.7-linux-gtk-x86_64.tar.gz

2. Extract it

   tar xzf eclipse-SDK-3.7-linux-gtk-x86_64.tar.gz
   

   Or just be lazy and Right Click > Extract Here

3. Move to /opt/ folder

   mv eclipse /opt/
   sudo chown -R root:root eclipse
   sudo chmod -R +r eclipse
   

4. Create an eclipse executable in your path

   sudo touch /usr/bin/eclipse
   sudo chmod 755 /usr/bin/eclipse
   sudo nano /usr/bin/eclipse
   

   copy the following into /usr/bin/eclipse

   #!/bin/sh
   #export MOZILLA_FIVE_HOME="/usr/lib/mozilla/"
   export ECLIPSE_HOME="/opt/eclipse"
   
   $ECLIPSE_HOME/eclipse $*
   

   save the file (^O = Ctrl+o) and exit nano (^X = Ctrl+x)

5. Create a gnome menu item

   sudo nano /usr/share/applications/eclipse.desktop
   

   copy the following into /usr/share/applications/eclipse.desktop

   [Desktop Entry]
   Encoding=UTF-8
   Name=Eclipse
   Comment=Eclipse IDE
   Exec=eclipse
   Icon=/opt/eclipse/icon.xpm
   Terminal=false
   Type=Application
   Categories=GNOME;Application;Development;
   StartupNotify=true
   

   save and exit nano

6. Launch Eclipse for the first time

   /opt/eclipse/eclipse -clean &
   

I don't think eclipse needs 'install', just extract(unpack) it and everything is ok.