I already have a domain name with some other provider. Can DataCenter still provide web hosting or e-mail hosting to me?
Yes, DataCenter can still provide web hosting and email service for any domain name even if you registered it with other Provider. You will need to 'point' your domain name to Datacenter name servers. You can point your domain name by using nameservers or set 'A' records to Datacenter server ips. These IP and name servers details will provide alone with web hosting account details.