In that e-book I gave some illustrated screenshots to make this Upgrading job as an easiest one. But If you are the advanced users, you can do it yourself.
Just install these WP-DBManager and WordPress Instant Upgrade Plugins.
Go to Database to Back up your files.
Next deactivate your entire Plugins except WP-DB manager and Instant
Next go Manage tab and Click Instant Upgrade.And start your Upgrade process.
If you did not understand these steps, just download and follow the e-book. I gave illustrated screenshots.