Try to login in build-in administrator account and make diagnose
repair or create new admin account.If there is no any administrato
account build-in admin should appear in safe mode -if not you have t
enable build-in admin remotel
There are many various methods to do that
link :'What do I do: I can no longer log in or elevate to a
administrator account' (
http://www.jimmah.com/vista/content.aspx?id=7
apart of above method alsoTools for reseting password also have optio
to enable/disable accounts (for built-in admin also) for exampl
'Offline NT Password & Registry Editor
(
http://home.eunet.no/pnordahl/ntpasswd/
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Flavius