I really like the thumbnails on the category blog. I would like to be able to restrict it to only category blogs but cannot see a way to do that without explicitly including all the categories.

I would also like to find a way to stop it changing the images in the articles themselves.

I'm building a site for a Scout troop. One of things I needed was for registered authors to be able to attach files to their articles - this is to publish programs and news letters etc. This is perfect, it is easy to install, easy to use and most important - works. Because the files are attached to an article only people who are allowed to see an article can see the attachment. No seperate management. No tricky categories. Kids understand it. Designated admins can review the attachment before they're published. Excellent.