Dear rspurrie,
You purchased domain license, when you run detect script, there are two results, one is domain name and another is IP,please ignore the detected IP, that is for IP license. Pls check your domain name, if detected domain name is 216.218.209.18, your license should work and will not throw "host not match" message.
you can send your ftp information to
eric@cutesoft.net or you can come to live support, you can meet me at
http://CuteSoft.net, click on the big blue button on top that reads "online". We are here Monday - Friday between 9:30am and 17:30pm Eastern Standard Time.
I will help you fix this issue.
Regards,
Eric