by Wanda Bostock.
I extracted 2.4.3 from the Moodle.org site and then copied it up to my site location. Then I copied my config.php into the new moodle installation, and copied the joomdle folder from my old moodle installation to the same location in the new installation.
Please let me know if that doesn't answer your question, and let me know if you have any other questions. Thanks!