Somehow you weren't told that furtherado.com was already registered through June 2010. You'll need to pick a different domain.
Also if you are new to web hosting perhaps there is some confusion of the terms registration and hosting. Domain registration and domain hosting are two separate services. You don't have to register a domain with DreamHost in order to host a domain with DreamHost and so domain registration can be overlooked when signing up for an account with DreamHost. I suggest contacting Support through the Web Panel especially in the event your Domains -> Registration panel shows furtherado.com so that can be corrected. It's probably not there, in which case you'd may want to let them know what lead you to believe you had 'bought it' so this doesn't happen again. At least I get e-mail messages letting me know the domain registration was a success and gives the expiration date.
Customer since 2000 openvein.org