To upgrade, you need to download the ZIP file from your members area, unzip it, and rename the folder called "upload" to the name of your forum extension e.g.
www.yoursite.com/forumextensiongoeshere. Next, upload the folder you just renamed into your public_html directory [if you already have the forums installed and are upgrading then the files will automatically go into this folder]. You must overwrite all the files.
Next, go to
http://www.yoursite.com/forumextensi...ll/upgrade.php and follow the instructions.
Be sure to delete config.php.new, install.php and upgrade.php once you have finished.