You can connect ANY domain to your new IMC site (global - .com, .net, .info etc. or local - .fr, .co.uk, .com.au etc).
To connect a domain, click PUBLISH > choose a subscription plan (all include unlimited hosting) > follow the steps to connect an existing domain as detailed in our step-by-step tutorial, which can also be found here - imcreator.com/existing_domain
To locate your registrar's control panel, see http://support.imcreator.com/entries/22461996-Finding-your-registrar-s-control-panel
If you are looking also to host your site elsewhere, please see http://support.imcreator.com/entries/23860425-Hosting-with-another-company