QuiXplorer has now it's own Wiki (http://quixplorer.wiki.sourceforge.net/). This Wiki replaces the old documentation section since the wiki system is more easy to maintenance.
For the moment, everybody may change the contents of the wiki system, so feel free to contribute.
I think the most missing thing is an FAQ which covers the main questions found in the help / support forum and trackers. The site is prepared within the wiki but has no contents for now. You are encouraged to add items.