On the face of it, you’ve done the right things. Now all that’s left is to actually upload or transfer your content or do a one-click install or whatever you need to do to get your stuff up there.
If you don’t do any of that, your success will be marked by being able to hit the site with your browser and get the infamous directory listing.
BTW, when you went to the “Add New Domain / Sub-Domain” page, did you specify to fully host the domain?
Extra lifetime domain and $82 off with code [color=#CC0000]1DOM82[/color] or use [color=#CC0000]LM97[/color] for $97 off. Other Dreamhost coupon codes