>>Mine is
>>Microsoft SQL Server 2005 - 9.00.3068.00 (Intel X86) Feb 26 2008 18:15:01 Copyright (c) 1988-2005 Microsoft Corporation Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 3)
>>But I get this with:
>>SELECT @@VERSION
>> in SSMS
>>Not in Help->About.
>>Help->About show you only the version of SSMS and related products.
>
>Can someone tell me how I should proceed to update to 9.00.3068.00?

On MS Downloads site I only found this http://www.microsoft.com/downloads/details.aspx?FamilyID=fa751db3-7685-471b-ac31-f1b150422462&DisplayLang=en by searching SQL Server 2005 SP 3

(I started my check from Sergey's site, but he doesn't list SP3 for SQL Server 2005 either).