An important step in setting up your blog or any web site is making sure your Domain Name links to your Hosting account. You do this by transferring the Nameservers of your Host account to your Domain Name.
A Nameserver is a link or address and is very easy to find. I outline how to and how to set them up in the video below.
So it is as simple as that:
Step one find your Host account nameservers
Step two open your Domain Name account and go to the Nameservers section
Step three simply copy and paste the nameservers from your Host account into your domain names nameserver slots.
Then wait anything from a few hours to a couple of days for them to migrate over and then you can start working on your web site.
Hope the video helped, let me know.