You have to make sure the file name you give it is the real path and name of the file.
Also, I tried to do this on a MSSQL 2005 server with a MSSQL 2000 database file and had problems, so version might matter.
Hey socalwingsfan if you ever have time and access to MSSQL servers I've got a MSSQL 2000 database file that I'd like to get the data from; it's the database for this forum before the move to the new software. If I could get a SQL dump from that I could get all those posts back