Hi,
I think its possible only through registry change and to be considered very carefully.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\90\Tools\ClientSetup\CurrentVersion]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\90\Tools\Setup
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL.1\Setup]
In these 3 keys there are language settings. It's DWORD so when you edit the key, it needs to be changed to Decimal and put your language code in. (http://msdn.microsoft.com/en-us/library/ms190303.aspx)
Once done, either restart the SQL services or restart the server (if possible).
[font="Verdana"]Renuka__[/font]