I was using GoDaddy's PreviewDNS and building a website with hosting in one place and the domain name in another place. When I went to hook up the domain name to the new hosting plan, it went through before I could get into WordPress' Admin Panel to change the domain name in the Settings section. Now that's wrong, and the website's Admin Panel is completely inaccessible.
I called GoDaddy and they said I'd either need to completely rebuild the site (NOOO!) or ask you guys if there's a way to access that Admin Panel without it being accessible via http://www.domainname.com/wp-admin
Is there? Maybe if I get into the FTP files somewhere?...