Here's a little service to you – This document provides instructions and notes on upgrading to Ubuntu 7.10 (Gutsy Gibbon), released on the 18th of October 2007.
Read it here
Before you start
You can only directly upgrade to Ubuntu 7.10 (“Gutsy Gibbon”) from Ubuntu 7.04 (“Feisty Fawn”) (see UpgradeNotes).
Be sure that you have all updates applied to Ubuntu 7.04 before you upgrade (see below).
Before upgrading it is recommended that you read the release notes for Ubuntu 7.10, which document caveats and workarounds for known issues in this version.