Move SQL2008R2 VHD

Hi there.

We got an Axapta environment with a SQL2008R2 running on virtuel machines on a server
2008R2 Hyber-V server.
We needed to have a development environment exactly the same as the the production environment, so we installed a 2008R2 host. Created a DCT ctrl with same domain name
in a seperat net. On this we copied the productionservers : SQL and AXAPTA servers VHD files to the this environment, and kept there names, put them into the test domain and started.
Just can't access the database - why ?
We access with WIN authentication, but in USERNNAME it says : <servername>\administrator
instead of <domain>\administrator like the original.

Any help ?