Migrating SBS netdom issues

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I am using:
http://technet2.microsoft.com/WindowsServerSolutions/SBS/en/library/62e2094e-ad4e-4227-b20e-97a716ed7c861033.mspx?mfr=true
On this step Create an alias that maps the source server name to the destination server name
netdom bsg1 /add:bsg.bsg.local

says
paraneter bsg1 was unexpected.
so I use
netdom computername bsg1 /add:bsg.bsg.local

unable to add bsg.bsg.local as an alternative name for the computer
the error is
cannot complete this function.

The computer rename preparation procedure is available only if the
functional level of the domain to which this computer is joined is
win server 03 or higher
the command failed to complete successfully.

I am using w2k SP2 support tools.

I dunno if I am even using the right command.

--
Thank you,
Eric Vogel

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