Site and domain name?

Hi there,

This isnt really Flash related but i dont really know where else to post this question.

Basically i have a site ready to be uploaded to a host server. I also have a domain name registered with a company for the site.

Can anyone tell me how i go about connecting the domain name with my site on the host server?

This is the first time ive done it so i dont really know how to go about it.

Thanks for any help.