Data source name not found and no default driver specified

Data source name not found and no default driver specified

This is the error I get when attempting to install my copy of SQL Server
2000 developer edition.

I had SQL Server installed on my workstation, functioning correctly. My
computer crashed and it appears that there is some sort of registry
corruption because I could not open up my local instance in Enterprise
Manager.

Checking ODBCAD32, it did not appear that I had any drivers installed for
any source (MS Access, standard ODBC, SQL Server, etc.)

I attempted to execute the MDAC on the Microsoft web site with no results.
The component Checker determined that I had MDAC 2.8 SP1 on Windows XP SP2.

I uninstalled and reinstalled SQL Server and on the final step, the above
message appeared.

How do I get the default SQL Server driver reinstalled to my workstation. My
network techs indicate that I have to reinstall my OS to get the drivers
back. This seems a little extreme.

Thank you in advance.