Make a Redmine issues page look like a Kanban board such as Trello
Full instructions and installation
See the Github page at http://boxuk.github.com/kanbanise-redmine/
Changes to Redmine
See http://www.redmine.org/issues/11797 - in short, you have to patch one file - at least you do in Redmine 1.3.3, which this was build against. See the patch file included.