If you look at other flourishing projects such as Blender and Ogre, they have literally millions of fan based tutorials posted up in webpage format in full colour with pictures, and im sure alot of people (me included) are willing to make the same for irrlicht provided there is a nice place to put them (in webpage format).
Im thinking the new irrForge is a good place too? *Goes to check out irrForge and hopes this hasnt already been done there*
Cheers