I am new to K2 and just love it. But I wish I could find a manual or so on it, so I can understand all of it features, perhaps some one can guide me there?
ALSO

I have a front page with a number of categories / articles listed. On the category rendering I display in the left top corner a small image, i have assumer this picture is related to the cat number. I use modules for the rendering. However on some cats the image is displayed and others I get the big ugly RED x (no picture). No idea what to do about any longer. Please help!