Our servers are located in both the USA, and the UK. We use datacentres in Michigan, Texas and London.
The level of connectivity afforded by being at the geographic centre of the Internet is very appealing from a technical point of view. Additionally, we (and our customers) get more bang for our buck this way - US data prices and reliability coupled with UK-based support and administration. The perfect combination.
All you have to do is update your domain's nameserver settings.
Every domain has nameserver settings. The company that you purchased your domain from should have an interface on their website to allow you to change these settings.
To make your domain point at your web hosting account, update the settings to match those shown in your eadohost setup e-mail.
It normally takes 6-24 hours for this change to become active, after which time your domain will point at your eadohost web hosting account.
NB:Updating the nameservers is not the same thing as transferring a domain to a different provider (which would require an 'IPS tag'). If you're asked to supply an IPS tag, you're requesting the wrong thing.