To Get Installed the Latest Opera 65+ instead Look this other Guide: Here
The Guide Shows You How to Install the Latest Opera 65+ Browser on Ubuntu 12.10 Quantal 32-bit Unity Desktop the Easy-Way.
The Opera Browser Dispose of Several Advanced Features and the Most Valuable One is the Ability of Perfectly Resuming Any Download.
Especially relevant: at the Same Time I’m also Illustrating here the Easiest Way of Installing the New Downloaded .deb Packages with Dependencies.
The Post have Included the Screenshots of the Process Visualization and Installation Easier and More Plesant.
Download Latest Opera Browser for Ubuntu:Latest Opera i386 .deb
To Start Installation Double-Click on Downloaded .deb Package
Click on Install
In a little while you will Find Opera Browser Successfully Installed on Ubuntu :)
Opera in Ubuntu Unity Desktop