404SEF Joomla Directories-as-Filenames

Joomla’s 404SEF component can be tricky if you want to use directory names instead of file extensions, aka

http://www.bombshelters.com/Education/Biological-Bioterror-Weapons-Effects

not

http://www.bombshelters.com/Education/Biological-Bioterror-Weapons-Effects.html

First, lowercase is on by default. Second, default file extension of .html hurls your pages into deep space.

To hae both, go to 404 config, set All Lowercase to No, set File Suffix to a blank textbox.