use my own domain in my webpage

dear viewbook .. i want to have my own domain // for example :www.mydomain.com // i've upgraded to pro version already ... i have done all the 3 steps from your support and forum .. but still, it doesn't work .. when i type domain on the search box on my computer, it linked to viewbook homepage not to my portfolio web page .. i want to be just like hesterdoove.com .. hmm , maybe you can help me??

thx ..