Product manuals can be found online:

Uninstall Manager:
http://www.northglide.com/um_howtouse.html

Cleanup:
http://www.northglide.com/cleanup_howtouse.html

Uninstall Manager Sandbox - Quick Start Guide:
http://www.northglide.com/sandboxquickstart.html

Reviews which include further information:

http://www.clieuk.co.uk/umc.shtml
http://www.pdabuyersguide.com/software/Palm_uninstallers.htm
http://www.clieuk.co.uk/neat.shtml
http://www.computingunplugged.com/issues/issue200311/00001147001.html
http://www.spug.net/reviews/runinstallmanager.htm
http://www.spug.net/reviews/rcleanup.htm

Consumer Alert:
http://www.northglide.com/ConsumerAlert.htm