Now Wordpress 2.3 is out. You can upgrade with the following steps:
1) Download WP 2.3
2) Backup your blog
3) Deactivate all plugins
4) Upload the new Wordpress 2.3 using FTP
5) When the files are all FTP-ed, click on the plugin
6) The Wordpress upgrade page appears
7) Activate the basic plugins you need.
Voila, you are done.
You can read about Wordpress 2.3 and download Wordpress 2.3 file here. Really, blogging is a passion…you need to post, write reviews besides upgrading your blog to the latest version.

