melisamarie hi
Although you shouldnt ever get those type of error messages and we do need to know when you do I should let you know that you can not add other message icons . That section IS there but the only thing you would be able to do with it at all would be to type in the exact filenames of the gif files that exist in the default theme. (wink.gif, xx.gif, thumbsup.gif etc) You can't put in a url there. You can edit them (by clicking modify next to them) but about all you can do is change the tooltip/descripton for them.
Ohhh, ok. What I was wanting to do is change the "picture" of the "new posts/ no new posts" thingy. Like, instead of it being that triangle teeter totter thing, I wanted to put a little full coffee cup, and an empty coffee cup... So, that can't be done? the pic changing?