I watched the video and don't have any help with the problem you are having but here are some links that might help:

http://tech.groups.yahoo.com/group/paperportpreservationsociety/

http://www.macdrivermuseum.net/scanner/paperport5.sit

http://tech.groups.yahoo.com/group/macdrivers/

http://support.visioneer.com/products/Sheetfed/downloads.asp