Bkelly,
ProDiscover version 4.8 is somewhat dated and does not support Vista 64 bit. I recommend you downloading and using the latest version of ProDiscover Basic 6.0 from the resources section of our web site at http://www.techpathways.com/DesktopDefault.aspx?tabindex=7&tabid=14 The latest version of ProDiscover Basic is always available for download from this site.