The first item is sort of skin-dependent, but in general you would have to change how fieldsets are handled. Each fieldset is set up to put the label on the left and the field on the right. This is done with css to make "inline fieldsets". I can't give a quick how-to on it because I always get tripped up following my way through that particular area. Check out the _feedbacks.php file in your skins/skinname folder and your css, noting that often the css file will include css files from the rsc folder.

The second item is covered in the manual at http://b2evolution.net/man/2004/06/16/feedback_unmixed_howto but is not exactly what you want. To get trackbacks on top you would have to change the order of the three sections. I think it should be fairly easy after you check out the code a little bit.

The third item is a fairly common request - to 'pump up' the comments section. I have no idea where it falls on the dev team's todo list, or even if clickable tools are part of the future or not.

EDB, many thanks. Item #2 is already fixed. Now I just need to work on fieldsets, something I know nothing about. I used one of your fixes earlier today to change the color of the notes below the comment box, but I had no idea where you came up with it. Some experimentation is in order.