BTW I put the images in a howto:images: namespace rather than directly in howto.
Ok. I didn't think about how to handle images yet. Maybe a dedicated image namespace is useful or a image namespace per major namespace? Not sure yet.
Well I would suggest images split up to be near where they are used, easier to find, smaller numbers to manage, less filename clashes (wanna bet on how many menu.png files we could get :-)
Cheers Lex