The ISAM is the database driver, so its saying that it can't find a driver for Access 2000.
The Access Jet drivers were removed from the MDAC install from v2.6, you have to install them separately. Take a look at Microsoft Knowledge Base Article 239114 -"ACC2000: The Updated Version of Microsoft Jet 4.0 Is Available in the Download Center"
http://support.microsoft.com/default...b;EN-US;239114