EDIT: I will paste it for you here. 
Upgrading Magento with a full package or via SVN
Here are the steps for upgrading Magento with a full package or via SVN. Steps for upgrading with the MagentoConnect Manager are below.
1. Backup your database
2. Backup all the code you modified yourself, and don’t forget to keep the original installation archive
3. Take care of saving the media directory that contains all the uploaded product/category images
4. Create a backup copy of app/etc/local.xml file
5. Download a new installation archive or run SVN update if you checked it out from the Magento repository
6. Extract and upload all the files it contains to your server
7. Delete var/cache and var/session directories
8. Point your browser to any Magento page
9. Database upgrades should happen automatically
10. You are done!
Upgrading Magento using the MagentoConnect Manager
1. Go to http://your.server.com/magento/downloader
2. Log in using a user who has full permissions
3. Make sure to select “Clear all sessions after successfull install or upgrade”
How to upgrade from tarball installation
It is possible that you will see no extensions in MagentoConnect Manager. This means that you have just uploaded the files without using PEAR downloader. In that case enter magento-core/Mage_All_Latest in the extension key field and click Install button. This will install all latest MagentoConnect core packages on top of existing files and will allow future upgrades through MagentoConnect.
How to upgrade all available extensions
There should be at least one extension marked in yellow, which means a higher version is available on the MagentoConnect server
1. Click ‘Select all upgradable extensions’
2. Click ‘Commit changes’
3. Watch the console progress for error messages
4. After successfully upgrading click the ‘Refresh’ button that will appear under the console frame.
How to upgrade specific extensions
1. For each desired extension upgrade choose ‘Upgrade’ in the dropdown
2. To upgrade Magento Core modules choose the following packages, and all required dependencies will be upgraded automatically:
* Interface_Adminhtml_Default
* Interface_Frontend_Default
* Interface_Install_Default
* Mage_Core_Adminhtml
* Mage_Core_Modules
How to upgrade MagentoConnect Manager
1. MagentoConnect Manager is not installed as a PEAR package by default. If you wish to upgrade it, you will first need to install it as a PEAR package.
2. Enter magento-core/Mage_Downloader in the Extension key input field and click Install.
3. After it is installed the first time, you can upgrade it the same way as other extensions.
You can not uninstall MagentoConnect Manager
Using SSH shell access
1. To initialize the Magento PEAR command line registry, run the following command from the shell. Make sure you are in the Magento root folder:
2. ./pear mage-setup .
3. (make sure to include the second ‘.’)
How to upgrade from tarball installation
If you have not used MagentoConnect or PEAR command line to install Magento, you will need to enter this command for initial PEAR installation of all Magento core modules:
1. ./pear install magento-core/Mage_All_Latest
How to upgrade all available extensions
1. ./pear upgrade-all
How to upgrade specific extensions
1. ./pear upgrade magento-core/Mage_Core_Modules magento-core/Mage_Core_Adminhtml
2. ./pear upgrade magento-core/Interface_Adminhtml_Default magento-core/Interface_Frontend_Default magento-core/Interface_Install_Default
How to upgrade MagentoConnect Manager
1. If MagentoConnect Manager is not installed as a PEAR package yet:
2. ./pear install magento-core/Mage_Downloader
3. After it is installed it will be upgraded just as any other extension.
Hope this helps. 
