Okay .. no worries, sounds to me like you are going through the ordering another voda host account, and you dont need to do this ..
click here to
order your domain from vodahost
It will just be the one charge for your domain ..
Once you receive confirmation of your domain purchase, you will log into your vbs, provided in this domain purchase confirmation email, and you will change the name servers to your own voda host servers - those two servers are found in your voda host order welcome email ..your hosting account email ..
you will log into vbs with your email and password supplied to you with your domain registration confirmation
then you will add on this domain in your control panel, under the addon domain icon
then you will create and build your website, as you have done before, but you will publish to a new directory - this directory is created when you add onyour domain - take note as you add on your domain ..
best to create another folder on your own computer as well to handle and hold the .bvp files that are created for this new website, as some pages will have the same name - e.g., index - necessary for the starting page of all domains ..
:)