To connect to your site using DreamWeaver CS5 using FTP use the following settings:

Server Name: *This is for your reference only, you can use any name here*
Connect using: FTP
FTP Address: *your domain name*
Username: *same as default FTP password*
Password: *same as default password*
Root Directory: *this will be "wwwroot" if you are using ColdFusion/Windows plan and "public_html" if you are on Linux"

Web URL: http://**yourdomainname**

Click on "More Options" and make sure "Use Passive FTP" checked.