To use this resource, you should use a dedicated FTP client like Interarchy or Fetch. We all use Interarchy ourselves. We like to use the option in Interarchy to set our web browsers to automatically invoke Interarchy whenever we click on an FTP link on a web page. This amends the mappings in the Mac's internet preferences so FTP transfers automatically cause the Interarchy application to open. Now you are ready.
Fetch has a similar feature.
DNS tables have been updated to point to our server. Doing so will automatically log you in as an anonymous user. Make sure that you are using the latest versions. If you are in doubt, just go to Aladdin Systems and download the latest installers or updaters. Run the installers or upadters on your machine, and execute a restart.