When you register a new domain name or transfer/change your existing domain information, it can take up to 3 days for the domain name information to be updated among the Domain Name Service (DNS) servers around the world.
A work around, while you're waiting for domain propagation, is to create a domain alias.
See the following article for additional information:
http://account.websitehosting.net/knowledgebase.php?action=displayarticle&catid=10&id=87
