Hi bbbshop, did you get the email I sent to you? If not, then maybe rj-graffix.com is being blocked by your system or by your ISP. In the past, other users have had trouble because my IP was blocked by naver.com. Please contact them, because chances are good that they are the problem.
Did you read the frequently-asked-questions on the support page? Maybe Norton LifeLock is blocking it.
What version of the plugin are you using? You can see this in the About Box window. What version of Illustrator are you using? You say you have CADtools: does CADtools work for you?
Please respond to the email I sent in response to your support request. If you did not see it, I am probably blocked by your ISP. I cannot contact them because I cannot read any of the web site to find their help or support area.