I have the same issues. Can I appy SP4 directly?

My dev server details

9.00.3080.00SP2Standard Edition (64-bit)

Microsoft SQL Server 2005 - 9.00.3080.00 (X64) Sep 6 2009 09:15:46 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.0 (Build 6002: Service Pack 2)