Hosting A Site

I have purchased a domain name from go daddy, i want to host that site. I have already hosted one of my portals with a data center, i just want to transfer the whole data of that portal into this newly purchased domain with the same datacenter. I want to know what will be the procedure and technically is this possible. How much maximum time is required for this? Please help me at the earliest as we are going to launch the portal officially. Please revert back if you need any other information.