Cyberduck is a free FTP program for Mac OS X only. Once you have chosen Cyberduck as your FTP client, you can use the following step by step guide to help you configure it with the proper settings.
Cyberduck for Mac OS X Setup Guide
You will need the following FTP login details to access your FTP account through Cyberduck:
You were emailed the FTP login details when you signed up for your hosting account, but if you no longer have that email you can view the FTP login settings and change the FTP password by following these steps:
1. Login to your Account Manager at https://www.domainit.com/myaccount
2. Click on the domain name you would like to manage
3. Under "Service Details" you can view the FTP Hostname, FTP Username, and Remote Directory
4. Then, to change the FTP password, click "Change Password" next to "FTP/Control Panel"
You're done! Your webfiles should have appeared in your Cyberduck window. Now you are free to drag and drop files between Finder and Cyberduck.