I've changed the comment editing plugin I'm using. The new one should work exactly the same as the old one, but has a lot different under the hood. Just like the last one, I don't see what you see. You get the spiffy editing options, but I see the standard WordPress administrator stuff.
Would you be a pal and let me know if it does or doesn't work for you? If comments are so horribly broken you can't say a thing, kindly jot me a note with the contact form.
Thanks, and stuff.