If you are going to transfer your domain name to a different domain name registrar we would advise you to Transfer your domain name to Names.co.uk. With your email@example.com we will be able to assist you with setting up the DNS to point to your new website on theimagefile.
Wix domain name with .co.uk suffix will require a change of the TAG Name in order to transfer away from Wix. Please email wix at firstname.lastname@example.org with the following information:
-Wix User Name
-Wix Domain Name
-TAG Name of the new Domain Host (This will be provided by Names or other registrar when setting up the transfer)
For domain names with other suffixes please refer to the help article provided by Wix: http://www.wix.com/support/main/flash/domains-email/setting-domain-purchased-wix#weight-5.