cs97jim3,
Where exactly in that link does it address this problem?
I suspect you mean to say he should apply the latest service pack, in part because SQL 2000 is NOT SUPPORTED on Server 2003 without Service Pack 3 or later. But your comment doesn't say that and I didn't see any specific references to Server 2003 in the link.
furqan_trakker,
Make sure you have AT LEAST Service Pack 3 installed - as I mention above, SQL 2003 is not supported on 2003 without Service Pack 3 or later.