Hello,
There wouldnt be any issues even if you have SP3. However if you need to install SP4 ,below is the link
http://www.microsoft.com/downloads/details.aspx?FamilyID=8e2dfc8d-c20e-4446-99a9-b7f0213f8bc5&DisplayLang=en
From the following link please install > SQL2000.MSDE-KB884525-SP4-x86-ENU.EXE
Thanks.
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