I am a little confused about your setup... but if the downloader is not on the same machine as the SQL server, you may need to install the MSSQL client components on the PC that runs the downloader.
Hi Kev, sorry re the delay, I've been away and unfortunately still not back at my PC.
My Setup (at work) is a Full SQL 2005 Server on one PC (SQLTEST) and TVServer running on another PC (LINDSAY). The downloader is running on the same pc as TVServer, i.e LINDSAY.
It just occured to me - the SQL server has a default name, its addressed just as "SQLTEST", not "SQLTEST\EXPRESS" - you're not appending "\EXPRESS" to the hostname are you?
Cheers - Lindsay