In order to successfully use SWScanner, you need KDE 1.1. Foobar.lib is required in order to support the advanced SWScanner features. SWScanner uses about 5 megs of memory to run, but this may vary depending on your platform and configuration.
All required libraries as well as SWScanner itself can be found on The SWScanner home page.
You can find a list of changes at http://apps.kde.org/swscanner.