Run this:
SQL Server
loadTOCNode(4, 'moreinformation');
To identify what version of the SQL Server 2000 database engine or the MSDE 2000 you have installed, type the following command at the command prompt by using either the osql or the isql utility or by using the Query window in SQL Query Analyzer:
SELECT @@VERSION or SERVERPROPERTY('ProductVersion')
Similarly, you can determine the product level for a particular version of the SQL Server 2000 database engine or MSDE 2000 by running this command:
SELECT SERVERPROPERTY('ProductLevel')
The following table shows the relationship between:
•The SQL Server 2000 version and level.•The version number reported by @@VERSION.•The product level reported by SERVERPROPERTY('ProductLevel').
----------------------
Bascily if you read the Link I gave you, you will see that Standard and Enterprise require a Server O/S, Windows XP Home/Pro is not such a thing. Upon shoving in the CD for Standard, if it detects your not running from a Server, it installed the Desktop Edition or something...