just a thought, but maybe this might show required...
SELECT SERVERPROPERTY('ProductVersion') AS ProductVersion, SERVERPROPERTY('ProductLevel') AS ProductLevel,
SERVERPROPERTY('Edition') AS Edition,CASE(SERVERPROPERTY('EngineEdition'))
WHEN 1 THEN '1: Personal or Desktop Engine'
WHEN 2 THEN '2: Standard (Standard/Small Business Server/Web and Workgroup)'
WHEN 3 THEN '3: Enterprise (Enterprise/Enterprise Evaluation/Data Center/Developer)'
WHEN 4 THEN '4: Express (Express/Express with Advanced Services/Windows Embedded SQL)'
WHEN 5 THEN '5: SQL Azure'
ELSE 'Returned (enumeration reqd): ' + cast(SERVERPROPERTY('EngineEdition') AS varchar(10)) END AS EngineEdition;