You don't have to upload the sessions directory, but it won't hurt if you do. Only temporary files inside.
oops, too late, I uploaded it
After everything is uploaded, you'll bring up the install/upgrade.php file in your browser and follow the steps.
Upgrade done
It was beautiful
It went very smooth
Awesome
Where is my UBB Medal?
I deserve a Trophy [joke]
Should I now change any chmod permissions for security purposes ?