What is the best approach for the removal of the remnants of an old DC?

I'm getting ready to migrate my windows 2000 (native) domain to a Windows 2008 domain. However, yesterday when I ran a health check of the network using Microsoft IT Environment Health Scanner it failed because it detected the remnants of an old 2003 DC that was was removed from the root domain years ago following its demotion. What is the best method for removing the remnants of this DC?
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cheyligerAuthor Commented:
The first of the three links seems more relevant to what I'm trying to do.
Nagendra Pratap SinghCommented:
Let us know what worked for you!
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