I have a small company in Louisville, KY called iLouisville, LLC. I do a lot of network work, often including domain name (DNS) changes, but business has gotten a little slow so I'm looking of freelancer.com. It sounds to me like all you need is a simple DNS change. You will have to supply the administrative passwords for the website and the domain name host so that I can point the new domain name at your site and tell your site what the new name is. The change will then happy pretty quickly with most domain name hosts.