Initially, I set up my site via WordPress.com and registered the domain there as well. I realized what I had intended to do was set up WordPress.org functionality - so I purchased hosting services from Blue Host and changed the Name Server info in Automattic to reflect my hosting preference.
I then used Blue Host to install the WordPress.org functionality and create an admin account - this worked perfectly. I added a couple posts and pages, changed the url structure, etc (all changes took effect on the site, wormdrivegear.com). However, today when I went to login at the /wp-admin page, the login that I created via Simple Scripts in Blue Host didn't work any longer and my site didn't reflect the changes I made last night. I tried my original admin login from when I had mistakenly created a WordPress.com blog and that worked - it appears as though the site has reverted to acting like a WordPress.com blog, rather than a WordPress.org blog hosted at Blue Host.
I'm not sure what to do to get the WordPress.org functionality back - can anyone help me?