How to install Sony PCG-TR3A divice drivers

I have a sony pcg-tr3a and am trying to reload the divice drivers after installing a new HD. I do not have a sony driver reload recovery Cd. I have downloaded and installed the drivers from the sony site. Device mgr is marking the ‘Multimedia Audio Controller’ as not configured properly code 1. I was told there is an order in which to reload/install the drivers. Not following this order can land you in a padded room. Can some one please list the order. Thanks