Hi, I am not sure if I upgraded my site correctly. I was running drupal 4.6.0. I backed up all my databases and files. Then I downloaded the 4.6.2 package, unzipped it on my hard drive, and uploaded all of these files over the 4.6.0 files. I changed the settings.php file, uploaded it, then ran the update.php file. There were no errors, so I assume it worked. However, when I go to the main directory of my site, I get the following error:

Fatal error: Call to undefined function: drupal_add_link() in /home/letscon/public_html/drupal-4.6.0/modules/node.module on line 1609

What should I do to correct this error? Also, how do I know if my site has been successfully upgraded? Thanks