Download the files from the Angelfire webshell to your computer if the files are not already on your computer.
These settings are for the connection from your computer to DreamHost. So -
Profile Name: Just name the profile something like "Site at DreamHost"
Host Name: Take the domain you have hosted with DreamHost and put "ftp." in front, like "mydomain.com" becomes "ftp.mydomain.com"
User ID: Your username
Password: Your password
Account: not needed for DreamHost
Anonymous: should be "off"
You can ignore these if you want. Basically the first two are the directories WS_FTP will be showing when you connect to the FTP site, with "Remote Site" being DreamHost and "Local" being your computer.