NAV 2009 VHD: OS login details.

Hello.
I just downloaded the NAV 2009 vhd from Microsoft.com.
I am unable to find the login password for the vhd Operating System.
Do someone help me find where can I get the password, or probably can help if have have the same.
I couldn't raise a support ticket as it requires client name, and I need to run it for my own use.