Okay...I understand...My predecessor installed MSDE....Not SQL server 2000....I will try MSDE service pack on this place.

No. It doesn’t ask for the instance....it's the entire problem. It says directly that it have enough information to install.

Hope it'll work this week-end....

Effectively, I think that MSDE is installed. But How can I specify the instance. If I uninstall MSDE. DO you think it will works ???

I'll try.....

I rebooted couple of time (each time that I try to install it). It doesn’t change the SP.

SELECT @@version gives me that result

Microsoft SQL Server...