Using unused domains purchased with Bluehost.

I have domains that I purchased with bluehost that I don't use and want to try using one for my vps.

How do i set it up so domain.com points to my vps.

Do I transfer it somehow or what? Im just not really sure how this part of it works. I think I have apache and everything set up but since the domain is owned by my bluehost account it points to just some generic bluehost page.