(1) Download the module from the Drupal site

(2) Upload the module to Direct Admin (in compressed format):

public_html/sites/all/modules/

(3) Extract the module (look to be sure it is creating the correct subdirectory)

(4) Go to the website, click on Administer, then Site Configuration, then Modules.

(5) Look in the list of modules for your newly installed module and enable it (should be a radio button).

If your module is not there, go back to Direct Admin and make sure that you uploaded and extracted it into the correct directory (Step #2).

(6) In your website again, go to Administer, then User Administration, then Access Control. Look to see if you need to give yourself or anyone else permission to operate this new module (for some modules this is necessary, for others it is not).

(7) Go back to Administer and look to see if your module is listed. If so, click on it, and then configure it.